Astricon 2016
0 likes289 views
The document discusses securing VoIP systems against common fraud scenarios like international revenue share fraud, payment fraud, denial of service attacks, and identity theft. It provides tips for securing the network, SIP service, phones/endpoints, and administering the system through measures like firewalls, strong passwords, call limits, whitelisting valid numbers and destinations, monitoring, and being vigilant against fraud. The overarching message is that fraud is an ongoing issue requiring continuous effort to improve security.
1 of 33
Download to read offline
![J?ran Vinzens
linkedin.com/in/jvinzens
Set call limits for users
sip.conf
[peer]
call-limit = 2
Kamailio: pipelimit, pike
SIP service](https://image.slidesharecdn.com/astricon2016-171005133836/85/Astricon-2016-22-320.jpg)
![J?ran Vinzens
linkedin.com/in/jvinzens
Do not use
[default]
context in asterisk dialplan
SIP service](https://image.slidesharecdn.com/astricon2016-171005133836/85/Astricon-2016-23-320.jpg)
Ad
Recommended
Cd213 percy-audiocodes
Cd213 percy-audiocodesTran Thanh
?
This document discusses common misconceptions about securing VoIP systems and SIP trunking. It outlines known security threats to SIP such as theft of services, eavesdropping, and denial of service attacks. The document then addresses three specific misconceptions: 1) that eavesdropping on VoIP is easy, but securing media with SRTP and signaling with SIP/TLS protects phones, 2) that SIP trunking can be secured with only a SIP firewall when an SBC is actually needed to prevent DoS attacks, and 3) that good security is very expensive when AudioCodes offers affordable solutions that support encryption and other best practices. Overall it provides an overview of SIP security risks and strategies for properly securing VoIP networksSecure your Voice over IP (VoIP)
Secure your Voice over IP (VoIP)Techso
?
The document discusses the risks associated with Voice over IP (VoIP) hacking, highlighting the financial damages that businesses face from such attacks, which can total billions annually. It outlines common methods of telephone hacking, such as exploiting poor security measures, and emphasizes the importance of implementing protective practices. Recommendations for securing VoIP systems include limiting access, monitoring bills, and setting financial limits on calls.FortressFone Overview 012915
FortressFone Overview 012915Tom Malatesta
?
FortressFone is a secure smartphone system engineered for military-grade security. It features encrypted calls, texts, and cloud access. The system hardens the entire device to prevent hacking or data extraction from a stolen phone. It uses a secret-level approved secure SD card and "double pipe" encryption to securely establish communications channels. The system provides customers full control over their secure server and key management through proprietary technology.Protect your IPPBX against VOIP attacks
Protect your IPPBX against VOIP attacksRohan Fernandes
?
The document discusses the increasing threat of VoIP fraud, particularly targeting small to medium-sized businesses that lack adequate security measures. It highlights various forms of VoIP attacks (e.g., DDoS, toll fraud) and emphasizes the financial impact of these attacks, which can range from $5,000 to $900,000. Solutions such as the Allo SIP Threat Manager are recommended to help secure VoIP infrastructure against these vulnerabilities.FortressFone Technologies Leave Behind 01282015
FortressFone Technologies Leave Behind 01282015Tom Malatesta
?
FortressFone is a secure smartphone that combines security features with the performance of Samsung smartphones. It ensures good voice quality during secure communications and features a removable security token for storing algorithms and sensitive data. The key management center generates and distributes security parameters and configuration files to the devices.PLNOG 5: Rainer Baeder - Fortinet Overview, Fortinet VoIP Security
PLNOG 5: Rainer Baeder - Fortinet Overview, Fortinet VoIP SecurityPROIDEA
?
Fortinet is a network security company founded in 2000 with over 1,250 employees. It provides end-to-end security solutions including firewalls, antivirus software, and intrusion prevention systems. The document discusses Fortinet's VoIP security capabilities including SIP protocol inspection, rate limiting, and denial of service protection for VoIP servers. It also covers topics like SIP network address translation, RTP pinholing, media inactivity detection, and load balancing to ensure good VoIP traffic is prioritized over potential denial of service attacks.Telephone Recorder (Buy or Rent!)
Telephone Recorder (Buy or Rent!)dplsurve
?
This document advertises a telephone recorder for sale or rent. It can record inbound and outbound calls, display caller ID information, and store over 5 hours of recordings on a standard cassette. The recorder is easy to install, has an LCD display, and works on multi-line phones. It rents for $25 per week or can be purchased from the website, which sells a variety of surveillance equipment.Sectechbiz Is A Uae Based Company
Sectechbiz Is A Uae Based CompanySectechbiz
?
Sectechbiz is a UAE-based company specializing in advanced security applications, including surveillance and communication solutions. Their product range features secure GSM phones, spy phones, audio bugging devices, biometric USB drives, and jammers for various forms of electronic communication. Sectechbiz aims to provide comprehensive security measures for personal and professional use, including tracking capabilities for mobile devices and laptops.VoIP Security 101 what you need to know
VoIP Security 101 what you need to knowEric Klein
?
The document discusses VoIP security, detailing the various fraudulent practices and high financial losses associated with VoIP attacks, which reached $38.1 billion globally in 2015. It outlines common vulnerabilities, such as default passwords and poor security policies, and provides strategies for hardening VoIP systems against these threats. Additionally, it emphasizes the importance of maintaining secure practices and monitoring to prevent internal and external fraud.6 Steps to SIP trunking security
6 Steps to SIP trunking securityFlowroute
?
This document outlines 6 steps to secure SIP trunking and your network: 1) Update all software regularly to patch vulnerabilities, 2) Create complex, regularly changed passwords for all accounts, 3) Authenticate accounts based on IP address using whitelists and blacklists, 4) Only permit trusted SIP providers via firewall rules, 5) Understand how your provider handles signaling and media transmission and choose the most secure options, and 6) Establish secure connections like SSL for any remote access to your network. Taking these steps will reinforce network security and prevent fraudsters from accessing sensitive data and accounts.Netas Nova Cyber Security Product Family
Netas Nova Cyber Security Product FamilyCagdas Tanriover
?
The document outlines the importance of cybersecurity in the context of VoIP due to the increasing fraud and vulnerabilities associated with IP networks and telecommunication technologies. It highlights various security products and services aimed at preventing attacks such as toll fraud, eavesdropping, and denial of service, emphasizing the need for robust security measures and assessments. Additionally, it discusses specific types of fraud, such as 'one ring' and 'vishing,' and presents solutions like VoIP security scanners and application firewalls.Number one-issue-voip-today-fraud
Number one-issue-voip-today-fraudFlavio Eduardo de Andrade Goncalves
?
The document discusses VoIP fraud, providing an overview of the problem, common types of attacks, and mitigation techniques. It notes that VoIP fraud costs telecom companies millions annually. Attacks include SIP scanning, signaling attacks, exploiting vulnerabilities in phones. Defenses include strong passwords, detecting malformed packets, banning IPs with failures, validating dialogs, and rate limiting. OpenSIPS can help through TLS, signatures, firewall integration and alerting systems to reduce damages from attacks.DEFCON 23 - Patrick mcneil - guidelines for securing your voip PBX
DEFCON 23 - Patrick mcneil - guidelines for securing your voip PBXFelipe Prado
?
This document provides guidelines for securing a VoIP PBX system. It recommends blocking known scanners and credential crackers with firewall rules. It also suggests changing default settings like the user agent, SIP realm, and audio prompts to prevent information leakage. For management and service assurance, it advises following vendor hardening guides, requiring VPN access for management, and using strong passwords and encryption. To prevent denial of service attacks, it recommends using mitigation devices to block volumetric attacks. It also provides tips for detecting and preventing fraud and abuse, such as limiting call forwarding and international dialing.SIP, Unified Communications (UC) and Security
SIP, Unified Communications (UC) and SecurityDan York
?
This document discusses VoIP security best practices. It notes that the VoIP Security Alliance (VOIPSA) is working to develop a taxonomy of security threats and best practice recommendations. It provides several resources for information on VoIP security including the VOIPSA website, NIST guidelines, security tool repositories, and publications on VoIP hacking techniques and attacks. The conclusion is that VoIP can be made secure if properly deployed following best practices.Voip (In)Security - AfricaHackOn v2
Voip (In)Security - AfricaHackOn v2George Wahome
?
George Wahome discusses how VoIP security is often neglected, leaving systems vulnerable to attack. He provides examples of companies that have experienced losses of millions of dollars due to VoIP hacks that went undetected for weeks or months. Following a "rule of thumb" that anything connected to the internet can be hacked if security is not prioritized, he explains common motivations and types of attacks, such as toll fraud, traffic generation to premium numbers, and eavesdropping. Wahome then demonstrates vulnerabilities like credentials cracking and call manipulation on a sample VoIP system. He concludes by recommending the use of TLS, SRTP, server hardening, perimeter security, and unique user pins for login IDs and voicMaking your Asterisk System Secure
Making your Asterisk System SecureDigium
?
This document discusses how to make an Asterisk system more secure. It begins by explaining that PBX systems are targets for hackers and how they can find unsecured systems. It then provides recommendations for securing the physical device, operating system, network, Asterisk configuration, SIP, and dialplan. Resources discussed include taking Asterisk security courses, reviewing the Asterisk wiki for security articles, keeping systems updated, and using dedicated VoIP security products to monitor for attacks.VoIP security
VoIP securityMile Blenton
?
This document discusses security issues related to Voice over IP (VoIP) networks. It begins by noting some common security threats to VoIP like denial of service attacks, viruses, fraud, and eavesdropping. It then discusses how these threats can be addressed through techniques like access control, authentication, encryption, and admission control. The document argues that security is a complex issue and that investments should be made based on business needs and risk levels for different service providers and network types. It promotes session border controllers as a way for service providers to help ensure security.What Is IVR ?
What Is IVR ?King Astreisk Technologies
?
This document discusses securing an Asterisk PBX system. It covers configuring Asterisk for stability and performance, monitoring the Asterisk server, and hardening Asterisk security. Specific topics include optimizing the Asterisk configuration files to prevent extension hopping and restrict user access, setting up server monitoring with Nagios, securing the Asterisk processes as a non-root user, and using firewalls, chroot jails and Linux hardening to restrict access. Proper configuration of hardware, software updates and failover systems are also recommended for ensuring Asterisk reliability and uptime.Asterisksecuritykingasterisk 130723131448-phpapp01
Asterisksecuritykingasterisk 130723131448-phpapp01King Astreisk Technologies
?
This document discusses securing an Asterisk PBX system. It covers configuring Asterisk for stability and performance, monitoring the Asterisk server, and hardening Asterisk security. Specific topics include optimizing the Asterisk configuration files to prevent extension hopping and restrict user access, using firewalls and NAT, running Asterisk as a non-root user, and monitoring the system with Nagios. The document provides recommendations for ensuring hardware reliability, updating for stability, and protecting the system from unauthorized access or denial of service attacks.No More Fraud, Astricon, Las Vegas 2014
No More Fraud, Astricon, Las Vegas 2014Flavio Eduardo de Andrade Goncalves
?
The document discusses anti-fraud solutions for VoIP providers, highlighting the massive financial exposure and various hacking methods targeting PBX systems. It details common exploits, effective defense strategies, and the importance of implementing an anti-fraud system to prevent caller ID spoofing and other fraud types. The effectiveness of such systems is emphasized, noting high detection rates and collaborative protection capabilities.TADS Developer Summit Apidaze Philippe Sultan
TADS Developer Summit Apidaze Philippe SultanAlan Quayle
?
The Apidaze Telecom API offers tools for VoIP engineers and web developers to manage telephony through a range of components like DID numbers and SIP accounts. It enables functionalities such as placing calls, sending SMS, and executing XML scripts via HTTP requests. Future enhancements include a mobile SDK and advanced video capabilities leveraging WebRTC and SIP.E Tel2007 Black Bag Session - VoIP Security Threats, Tools and Best Practices
E Tel2007 Black Bag Session - VoIP Security Threats, Tools and Best PracticesDan York
?
The document is a security briefing regarding VoIP (Voice over Internet Protocol), featuring introductions of key speakers from the VoIP Security Alliance and discussing the importance of VoIP security, challenges, best practices, and tools available for securing VoIP systems. It outlines various security threats, regulatory issues, and the need for industry-wide best practices, as well as resources to aid in the implementation of these practices. Additionally, it emphasizes ongoing collaboration and communication within the security community to mitigate risks and enhance VoIP system protection.Askozia VoIP Security white paper - 2017, English
Askozia VoIP Security white paper - 2017, EnglishAskozia
?
The document discusses the security risks associated with Voice over IP (VoIP) systems, detailing common forms of cyber attacks like eavesdropping, denial-of-service, and toll fraud. It emphasizes the importance of implementing various security measures, including secure passwords, firewalls, and encryption, to protect IP telephony infrastructure from attacks. The paper concludes that regular updates and security reviews are essential for minimizing risks and safeguarding business communications.2600Hz - Detecting and Managing VoIP Fraud
2600Hz - Detecting and Managing VoIP Fraud2600Hz
?
The document discusses the evolution of telecom fraud, specifically focusing on VoIP fraud and its methods. It highlights the transition from early fraud techniques to modern, organized crime exploiting the vulnerabilities of digital communication systems, which has resulted in significant financial losses, particularly for small businesses. Key aspects include various types of attacks, their impacts, and recommendations for prevention and mitigation strategies.Generic Voice Security Issues
Generic Voice Security Issuesjasondewar
?
- Context Information Security is a cybersecurity firm that has identified voice security issues and developed the Enterprise Telephony Management (ETM) system to address them. Voice networks face threats like modem attacks, PBX attacks, toll fraud and communications fraud costing billions annually.
- The ETM system acts as a voice firewall and intrusion prevention system to control voice network access and block phone line attacks. It provides real-time monitoring and call accounting across an organization's voice infrastructure.
- The solution helps prevent threats like unauthorized modem access, toll fraud and protects confidential information from being transferred out of organizations.Positive Hack Days. Gurzov. VOIP - Reduce Your Expenses, Increase Your Income...
Positive Hack Days. Gurzov. VOIP - Reduce Your Expenses, Increase Your Income...Positive Hack Days
?
The document discusses the vulnerabilities and security threats associated with Voice over Internet Protocol (VoIP) infrastructure, emphasizing issues such as default passwords, software vulnerabilities, and passive attacks like traffic listening. It highlights the importance of implementing strong security measures, including monitoring changes, enforcing password policies, and utilizing compliance systems. The conclusions stress that VoIP systems share similar vulnerabilities with traditional corporate networks and require a comprehensive security approach.Scanning The Intertubes For Voip
Scanning The Intertubes For VoipSandro Gauci
?
The document discusses the abuse of Voice over IP (VoIP) systems, emphasizing techniques for scanning and fingerprinting these systems, particularly focusing on protocols like SIP and IAX2. It covers the rise of cybercrime related to VoIP, various tools used, and vulnerabilities such as unauthorized registrations. Additionally, the document touches on honeypot implementations and the potential for denial-of-service attacks through these protocols.Kealy Kevin
Kealy KevinCarl Ford
?
AT&T has designed a VoIP functional architecture and security architecture to provide end-to-end security for VoIP services. The security architecture provides defense-in-depth security across multiple domains, including the customer premises domain, AT&T VoIP border domain, and AT&T VoIP infrastructure domain. It uses techniques like authentication, firewalls, intrusion detection, and VPNs to protect availability, integrity, and confidentiality.Integrate POTS Carrier grade PBX to AI and WebRTC
Integrate POTS Carrier grade PBX to AI and WebRTCJ?ran Vinzens
?
The document discusses the integration of WebRTC and AI with traditional telephony and mobile services using Asterisk, highlighting the company's evolution from managing a traditional PBX setup to becoming a mobile operator. It outlines challenges faced over the years, including technical incompatibility, unclear feature sets, and the integration of legacy systems. The presentation includes a look at current solutions and platforms, emphasizing ongoing development and the importance of standards in communication technology.Using ARI and AGI to Connect Asterisk Instances
Using ARI and AGI to Connect Asterisk Instances J?ran Vinzens
?
The document discusses using Asterisk Gateway Interface (AGI) and Asterisk REST Interface (ARI) to connect multiple Asterisk instances in a large scale environment. It begins with an overview of AGI versus ARI, explaining that AGI interacts with the Asterisk dialplan directly through applications while ARI provides a RESTful API. The document then covers using both together by having an AGI script select a ARI application. It also discusses handling calls across multiple Asterisk instances using an ARI proxy like CyCoreSystems' or retel-io's to provide a single point of control.More Related Content
Similar to Astricon 2016 (20)
VoIP Security 101 what you need to know
VoIP Security 101 what you need to knowEric Klein
?
The document discusses VoIP security, detailing the various fraudulent practices and high financial losses associated with VoIP attacks, which reached $38.1 billion globally in 2015. It outlines common vulnerabilities, such as default passwords and poor security policies, and provides strategies for hardening VoIP systems against these threats. Additionally, it emphasizes the importance of maintaining secure practices and monitoring to prevent internal and external fraud.6 Steps to SIP trunking security
6 Steps to SIP trunking securityFlowroute
?
This document outlines 6 steps to secure SIP trunking and your network: 1) Update all software regularly to patch vulnerabilities, 2) Create complex, regularly changed passwords for all accounts, 3) Authenticate accounts based on IP address using whitelists and blacklists, 4) Only permit trusted SIP providers via firewall rules, 5) Understand how your provider handles signaling and media transmission and choose the most secure options, and 6) Establish secure connections like SSL for any remote access to your network. Taking these steps will reinforce network security and prevent fraudsters from accessing sensitive data and accounts.Netas Nova Cyber Security Product Family
Netas Nova Cyber Security Product FamilyCagdas Tanriover
?
The document outlines the importance of cybersecurity in the context of VoIP due to the increasing fraud and vulnerabilities associated with IP networks and telecommunication technologies. It highlights various security products and services aimed at preventing attacks such as toll fraud, eavesdropping, and denial of service, emphasizing the need for robust security measures and assessments. Additionally, it discusses specific types of fraud, such as 'one ring' and 'vishing,' and presents solutions like VoIP security scanners and application firewalls.Number one-issue-voip-today-fraud
Number one-issue-voip-today-fraudFlavio Eduardo de Andrade Goncalves
?
The document discusses VoIP fraud, providing an overview of the problem, common types of attacks, and mitigation techniques. It notes that VoIP fraud costs telecom companies millions annually. Attacks include SIP scanning, signaling attacks, exploiting vulnerabilities in phones. Defenses include strong passwords, detecting malformed packets, banning IPs with failures, validating dialogs, and rate limiting. OpenSIPS can help through TLS, signatures, firewall integration and alerting systems to reduce damages from attacks.DEFCON 23 - Patrick mcneil - guidelines for securing your voip PBX
DEFCON 23 - Patrick mcneil - guidelines for securing your voip PBXFelipe Prado
?
This document provides guidelines for securing a VoIP PBX system. It recommends blocking known scanners and credential crackers with firewall rules. It also suggests changing default settings like the user agent, SIP realm, and audio prompts to prevent information leakage. For management and service assurance, it advises following vendor hardening guides, requiring VPN access for management, and using strong passwords and encryption. To prevent denial of service attacks, it recommends using mitigation devices to block volumetric attacks. It also provides tips for detecting and preventing fraud and abuse, such as limiting call forwarding and international dialing.SIP, Unified Communications (UC) and Security
SIP, Unified Communications (UC) and SecurityDan York
?
This document discusses VoIP security best practices. It notes that the VoIP Security Alliance (VOIPSA) is working to develop a taxonomy of security threats and best practice recommendations. It provides several resources for information on VoIP security including the VOIPSA website, NIST guidelines, security tool repositories, and publications on VoIP hacking techniques and attacks. The conclusion is that VoIP can be made secure if properly deployed following best practices.Voip (In)Security - AfricaHackOn v2
Voip (In)Security - AfricaHackOn v2George Wahome
?
George Wahome discusses how VoIP security is often neglected, leaving systems vulnerable to attack. He provides examples of companies that have experienced losses of millions of dollars due to VoIP hacks that went undetected for weeks or months. Following a "rule of thumb" that anything connected to the internet can be hacked if security is not prioritized, he explains common motivations and types of attacks, such as toll fraud, traffic generation to premium numbers, and eavesdropping. Wahome then demonstrates vulnerabilities like credentials cracking and call manipulation on a sample VoIP system. He concludes by recommending the use of TLS, SRTP, server hardening, perimeter security, and unique user pins for login IDs and voicMaking your Asterisk System Secure
Making your Asterisk System SecureDigium
?
This document discusses how to make an Asterisk system more secure. It begins by explaining that PBX systems are targets for hackers and how they can find unsecured systems. It then provides recommendations for securing the physical device, operating system, network, Asterisk configuration, SIP, and dialplan. Resources discussed include taking Asterisk security courses, reviewing the Asterisk wiki for security articles, keeping systems updated, and using dedicated VoIP security products to monitor for attacks.VoIP security
VoIP securityMile Blenton
?
This document discusses security issues related to Voice over IP (VoIP) networks. It begins by noting some common security threats to VoIP like denial of service attacks, viruses, fraud, and eavesdropping. It then discusses how these threats can be addressed through techniques like access control, authentication, encryption, and admission control. The document argues that security is a complex issue and that investments should be made based on business needs and risk levels for different service providers and network types. It promotes session border controllers as a way for service providers to help ensure security.What Is IVR ?
What Is IVR ?King Astreisk Technologies
?
This document discusses securing an Asterisk PBX system. It covers configuring Asterisk for stability and performance, monitoring the Asterisk server, and hardening Asterisk security. Specific topics include optimizing the Asterisk configuration files to prevent extension hopping and restrict user access, setting up server monitoring with Nagios, securing the Asterisk processes as a non-root user, and using firewalls, chroot jails and Linux hardening to restrict access. Proper configuration of hardware, software updates and failover systems are also recommended for ensuring Asterisk reliability and uptime.Asterisksecuritykingasterisk 130723131448-phpapp01
Asterisksecuritykingasterisk 130723131448-phpapp01King Astreisk Technologies
?
This document discusses securing an Asterisk PBX system. It covers configuring Asterisk for stability and performance, monitoring the Asterisk server, and hardening Asterisk security. Specific topics include optimizing the Asterisk configuration files to prevent extension hopping and restrict user access, using firewalls and NAT, running Asterisk as a non-root user, and monitoring the system with Nagios. The document provides recommendations for ensuring hardware reliability, updating for stability, and protecting the system from unauthorized access or denial of service attacks.No More Fraud, Astricon, Las Vegas 2014
No More Fraud, Astricon, Las Vegas 2014Flavio Eduardo de Andrade Goncalves
?
The document discusses anti-fraud solutions for VoIP providers, highlighting the massive financial exposure and various hacking methods targeting PBX systems. It details common exploits, effective defense strategies, and the importance of implementing an anti-fraud system to prevent caller ID spoofing and other fraud types. The effectiveness of such systems is emphasized, noting high detection rates and collaborative protection capabilities.TADS Developer Summit Apidaze Philippe Sultan
TADS Developer Summit Apidaze Philippe SultanAlan Quayle
?
The Apidaze Telecom API offers tools for VoIP engineers and web developers to manage telephony through a range of components like DID numbers and SIP accounts. It enables functionalities such as placing calls, sending SMS, and executing XML scripts via HTTP requests. Future enhancements include a mobile SDK and advanced video capabilities leveraging WebRTC and SIP.E Tel2007 Black Bag Session - VoIP Security Threats, Tools and Best Practices
E Tel2007 Black Bag Session - VoIP Security Threats, Tools and Best PracticesDan York
?
The document is a security briefing regarding VoIP (Voice over Internet Protocol), featuring introductions of key speakers from the VoIP Security Alliance and discussing the importance of VoIP security, challenges, best practices, and tools available for securing VoIP systems. It outlines various security threats, regulatory issues, and the need for industry-wide best practices, as well as resources to aid in the implementation of these practices. Additionally, it emphasizes ongoing collaboration and communication within the security community to mitigate risks and enhance VoIP system protection.Askozia VoIP Security white paper - 2017, English
Askozia VoIP Security white paper - 2017, EnglishAskozia
?
The document discusses the security risks associated with Voice over IP (VoIP) systems, detailing common forms of cyber attacks like eavesdropping, denial-of-service, and toll fraud. It emphasizes the importance of implementing various security measures, including secure passwords, firewalls, and encryption, to protect IP telephony infrastructure from attacks. The paper concludes that regular updates and security reviews are essential for minimizing risks and safeguarding business communications.2600Hz - Detecting and Managing VoIP Fraud
2600Hz - Detecting and Managing VoIP Fraud2600Hz
?
The document discusses the evolution of telecom fraud, specifically focusing on VoIP fraud and its methods. It highlights the transition from early fraud techniques to modern, organized crime exploiting the vulnerabilities of digital communication systems, which has resulted in significant financial losses, particularly for small businesses. Key aspects include various types of attacks, their impacts, and recommendations for prevention and mitigation strategies.Generic Voice Security Issues
Generic Voice Security Issuesjasondewar
?
- Context Information Security is a cybersecurity firm that has identified voice security issues and developed the Enterprise Telephony Management (ETM) system to address them. Voice networks face threats like modem attacks, PBX attacks, toll fraud and communications fraud costing billions annually.
- The ETM system acts as a voice firewall and intrusion prevention system to control voice network access and block phone line attacks. It provides real-time monitoring and call accounting across an organization's voice infrastructure.
- The solution helps prevent threats like unauthorized modem access, toll fraud and protects confidential information from being transferred out of organizations.Positive Hack Days. Gurzov. VOIP - Reduce Your Expenses, Increase Your Income...
Positive Hack Days. Gurzov. VOIP - Reduce Your Expenses, Increase Your Income...Positive Hack Days
?
The document discusses the vulnerabilities and security threats associated with Voice over Internet Protocol (VoIP) infrastructure, emphasizing issues such as default passwords, software vulnerabilities, and passive attacks like traffic listening. It highlights the importance of implementing strong security measures, including monitoring changes, enforcing password policies, and utilizing compliance systems. The conclusions stress that VoIP systems share similar vulnerabilities with traditional corporate networks and require a comprehensive security approach.Scanning The Intertubes For Voip
Scanning The Intertubes For VoipSandro Gauci
?
The document discusses the abuse of Voice over IP (VoIP) systems, emphasizing techniques for scanning and fingerprinting these systems, particularly focusing on protocols like SIP and IAX2. It covers the rise of cybercrime related to VoIP, various tools used, and vulnerabilities such as unauthorized registrations. Additionally, the document touches on honeypot implementations and the potential for denial-of-service attacks through these protocols.Kealy Kevin
Kealy KevinCarl Ford
?
AT&T has designed a VoIP functional architecture and security architecture to provide end-to-end security for VoIP services. The security architecture provides defense-in-depth security across multiple domains, including the customer premises domain, AT&T VoIP border domain, and AT&T VoIP infrastructure domain. It uses techniques like authentication, firewalls, intrusion detection, and VPNs to protect availability, integrity, and confidentiality.More from J?ran Vinzens (11)
Integrate POTS Carrier grade PBX to AI and WebRTC
Integrate POTS Carrier grade PBX to AI and WebRTCJ?ran Vinzens
?
The document discusses the integration of WebRTC and AI with traditional telephony and mobile services using Asterisk, highlighting the company's evolution from managing a traditional PBX setup to becoming a mobile operator. It outlines challenges faced over the years, including technical incompatibility, unclear feature sets, and the integration of legacy systems. The presentation includes a look at current solutions and platforms, emphasizing ongoing development and the importance of standards in communication technology.Using ARI and AGI to Connect Asterisk Instances
Using ARI and AGI to Connect Asterisk Instances J?ran Vinzens
?
The document discusses using Asterisk Gateway Interface (AGI) and Asterisk REST Interface (ARI) to connect multiple Asterisk instances in a large scale environment. It begins with an overview of AGI versus ARI, explaining that AGI interacts with the Asterisk dialplan directly through applications while ARI provides a RESTful API. The document then covers using both together by having an AGI script select a ARI application. It also discusses handling calls across multiple Asterisk instances using an ARI proxy like CyCoreSystems' or retel-io's to provide a single point of control.Astricon plan 9 2020
Astricon plan 9 2020J?ran Vinzens
?
This document discusses using the Asterisk REST Interface (ARI) to bridge calls across multiple Asterisk instances in a scaled environment. It explains that ARI allows remote control of Asterisk instances, which is necessary to connect calls handled by different instances. The main challenges are identifying conference calls, checking for existing conferences, and adding calls to conferences across instances. It proposes using a global database, routing keys, and one controlling instance to orchestrate conferences among multiple Asterisk servers.Asterisk 11to16, What could go wrong
Asterisk 11to16, What could go wrongJ?ran Vinzens
?
An Asterisk administrator discusses upgrading an Asterisk PBX from version 11 to version 16. This involved building new Debian packages, porting configurations, updating dialplans, testing features, and addressing issues like crashes, logging problems, and high system loads. Through testing and troubleshooting, the upgrade was eventually successful and the system could handle the same call load as the previous version. However, ongoing work is still needed to optimize logging and reduce continuous CPU loads.ARI and AGI, a powerful combination
ARI and AGI, a powerful combinationJ?ran Vinzens
?
This document discusses using Asterisk Gateway Interface (AGI), Asterisk Manager Interface (AMI), and Asterisk REST Interface (ARI) to build telephony features. It proposes using AGI for generic call setup/teardown and feature determination, and ARI apps running on an ARI proxy to control individual features during calls. This decouples features from Asterisk and isolates them, improving testability, replaceability, and avoiding direct developer interaction with Asterisk dialplan. The approach moves routing logic away from Asterisk and enables any feature via a low-level ARI API and high-level feature control.SITREP - Asterisk REST. The first steps are done, now what? - CommCon 2019
SITREP - Asterisk REST. The first steps are done, now what? - CommCon 2019J?ran Vinzens
?
- The current Asterisk infrastructure is complex, outdated, and difficult to maintain. It uses custom patches and an old version of chan_sip.
- The team wants to update components, simplify interactions, and eliminate custom code to make the system more secure, scalable, and able to utilize new Asterisk features.
- They plan to use Asterisk REST Interface (ARI) to create a new interface and decouple Asterisk from the call controller for improved scalability. This will involve a step-by-step "soft" migration rather than a full rewrite.astricon2018
astricon2018J?ran Vinzens
?
This document discusses the motivation, design, and implementation of a distributed high availability Asterisk application using Stasis and ARI over Kafka. The current setup uses AGI and AMI with an evolved monolithic architecture. The new approach uses ARI, modularizes the system, and uses a single Asterisk server. Kamailio dispatches calls and observes Asterisk. A Stasis app handles SIP/media, and a call controller manages call logic and routing. ARI events are sent to Kafka, and commands are sent back. This allows for transparent server farms, easy scaling, and restart safety while meeting demands for high availability, performance, scalability, and continuous deployment.Commcon 2018
Commcon 2018J?ran Vinzens
?
The document discusses using Ansible to automate the deployment of VoIP components. It begins by describing the manual deployment process and then outlines the benefits of using Ansible including continuous deployment, automatic testing and rollback. It provides details on how Ansible works with Jenkins to deploy configuration changes to VoIP systems after code is pushed to GitHub. The document emphasizes that VoIP systems require special handling during deployment due to ongoing calls and real-time requirements. It suggests separating code and configuration and describes using Ansible to template configuration files and deploy them to different hosts, while handling things like reloading services.Astricon 2015
Astricon 2015J?ran Vinzens
?
sipgate built a carrier grade VoIP infrastructure in Germany over 10 years, starting as a small VoIP carrier in 2004 and expanding to interconnect with telecom carriers via SS7 and support carrier features. Their infrastructure now uses YATE to handle SS7 interconnect, MAP/CAMEL protocols and control media gateways, Asterisk for billing, announcements and PBX features, Kamailio as a SIP back-to-back user agent and stateful proxy, and monitoring tools to oversee the complex signaling and media routing across systems.Ss7 isup homer
Ss7 isup homerJ?ran Vinzens
?
The document discusses using Homer to debug ISUP/SIP calls by capturing network traffic. Homer allows capturing SIP, ISUP, and other protocols in one tool. It involves installing a capture agent to collect traffic, sending it to a capture node like Kamailio that processes the data, and storing it in a MySQL database. A web interface called Webhomer provides a GUI to view analyzed calls and troubleshoot issues across different protocols in a single tool.Astricon 2017 Superpower of deployment tools
Astricon 2017 Superpower of deployment toolsJ?ran Vinzens
?
The document discusses using deployment tools like Ansible to automate configuration management. Previously, manual deployment and patching occurred every two weeks. Ansible can enable continuous deployment, automatic testing and rollback, and remove the need for specialized knowledge. It works by triggering Jenkins when code is pushed, building packages, running Ansible scripts to install packages, configure systems, run tests, and rollback if needed. Templates allow host-specific configurations. Ansible can perform tasks across multiple systems and be used to automate common administration tasks.Ad
Recently uploaded (20)
最新版美国圣莫尼卡学院毕业证（厂惭颁毕业证书）原版定制
最新版美国圣莫尼卡学院毕业证（厂惭颁毕业证书）原版定制Taqyea
?
鉴于此，定制圣莫尼卡学院学位证书提升履历【q薇1954292140】原版高仿圣莫尼卡学院毕业证(SMC毕业证书)可先看成品样本【q薇1954292140】帮您解决在美国圣莫尼卡学院未毕业难题，美国毕业证购买，美国文凭购买，【q微1954292140】美国文凭购买，美国文凭定制，美国文凭补办。专业在线定制美国大学文凭，定做美国本科文凭，【q微1954292140】复制美国Santa Monica College completion letter。在线快速补办美国本科毕业证、硕士文凭证书，购买美国学位证、圣莫尼卡学院Offer，美国大学文凭在线购买。
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
【复刻一套圣莫尼卡学院毕业证成绩单信封等材料最强攻略,Buy Santa Monica College Transcripts】
购买日韩成绩单、英国大学成绩单、美国大学成绩单、澳洲大学成绩单、加拿大大学成绩单（q微1954292140）新加坡大学成绩单、新西兰大学成绩单、爱尔兰成绩单、西班牙成绩单、德国成绩单。成绩单的意义主要体现在证明学习能力、评估学术背景、展示综合素质、提高录取率，以及是作为留信认证申请材料的一部分。
圣莫尼卡学院成绩单能够体现您的的学习能力，包括圣莫尼卡学院课程成绩、专业能力、研究能力。（q微1954292140）具体来说，成绩报告单通常包含学生的学习技能与习惯、各科成绩以及老师评语等部分，因此，成绩单不仅是学生学术能力的证明，也是评估学生是否适合某个教育项目的重要依据！David Boutry - Mentors Junior Developers
David Boutry - Mentors Junior DevelopersDavid Boutry
?
David Boutry is a Senior Software Engineer in New York with expertise in high-performance data processing and cloud technologies like AWS and Kubernetes. With over eight years in the field, he has led projects that improved system scalability and reduced processing times by 40%. He actively mentors aspiring developers and holds certifications in AWS, Scrum, and Azure.Modern multi-proposer consensus implementations
Modern multi-proposer consensus implementationsFran?ois Garillot
?
Multi-proposer consensus protocols let multiple validators propose blocks in parallel, breaking the single-leader throughput bottleneck of classic designs. Yet the modern multi-proposer consensus implementation has grown a lot since HotStuff. THisworkshop will explore the implementation details of recent advances – DAG-based approaches like Narwhal and Sui’s Mysticeti – and reveal how implementation details translate to real-world performance gains. We focus on the nitty-gritty: how network communication patterns and data handling affect throughput and latency. New techniques such as Turbine-like block propagation (inspired by Solana’s erasure-coded broadcast) and lazy push gossip broadcasting dramatically cut communication overhead. These optimizations aren’t just theoretical – they enable modern blockchains to process over 100,000 transactions per second with finality in mere milliseconds? redefining what is possible in decentralized systems.
Microwatt: Open Tiny Core, Big Possibilities
Microwatt: Open Tiny Core, Big PossibilitiesIBM
?
Microwatt is a lightweight, open-source core based on the OpenPOWER ISA.
It’s designed for FPGAs and easy experimentation in chip design.
Ideal for education, prototyping, and custom silicon development.
Fully open, it empowers developers to learn, modify, and innovate.Water demand - Types , variations and WDS
Water demand - Types , variations and WDSdhanashree78
?
Water demand refers to the volume of water needed or requested by users for various purposes. It encompasses the water required for domestic, industrial, agricultural, public, and other uses. Essentially, it represents the overall need or quantity of water required to meet the demands of different sectors and activities. The basics of hydrogenation of co2 reaction
The basics of hydrogenation of co2 reactionkumarrahul230759
?
basics of hydrogenation of CO2 where syntheis and literature review is well explained ElysiumPro Company Profile 2025-2026.pdf
ElysiumPro Company Profile 2025-2026.pdfinfo751436
?
Description
ElysiumPro | IEEE Final Year Projects | Best Internship Training | Inplant Training in Madurai
Best Final Year project training center
Address:
First Floor, A Block, 'Elysium Campus, 229, Church Rd, Vaigai Colony, Madurai, Tamil Nadu 625020
Plus Code:
W4CX+56 Madurai, Tamil Nadu
+91 9944793398
info@elysiumpro.in
Elysium Group of Companies established ElysiumPro in 2001. Since its inception, it has been the most sought-after destination for final year project development and research papers among the students. Our commitment to providing quality project training & documentation to students has always been exceptional. We deliver the final year engineering projects and technical documents that provide extra edge and industry exposure to land prestigious jobs and reputed institutions for higher studies. Students from all over the country avail of our services for their final year projects. On average, we develop 5000+ projects and research papers per year on varied advanced domains. Python, JAVA, PHP, Android, Matlab, LabView, VLSI, SIMULINK, Power electronics, Power System, Antenna, Machine Learning, Deep Learning, Data Science, Artificial Intelligence, data Mining, Big Data, Cloud Computing, IoT,
Hours of Operation: -
Sunday 10am-1pm
Monday 7.30am-8pm
Tuesday 7.30am-8pm
Wednesday 7.30am-8pm
Thursday 7.30am-8pm
Friday 7.30am-8pm
Saturday 7.30am-8pm
Web Site:
https://elysiumpro.in/
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Youtube Geotagged Video:
https://youtu.be/QULY6XfuMyo
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
狠狠撸show Images (Google Photos):
https://photos.app.goo.gl/hVwQJtkeptA1JZKd9
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
GBP Listing:
https://goo.gl/maps/6d6hko6TsDYyeDrz9
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Serving Areas:
https://www.google.com/maps/d/edit?mid=1-fsZogBiEAcjGP_aDyI0UKKIcwVUWfo&usp=sharing
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Google Site:
https://elysiumpro-project-center.business.site
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Google Sheet: https://docs.google.com/spreadsheets/d/1uXA07zxrUx2FCnBZWH80PpBZQrrX-2q1UBBe_0k3Yeo
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Google Document: https://docs.google.com/document/d/1BU4ZHW_41XJm2lvTq9pWYUpZILAEmF9dWEw7-DBbWoE
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Google 狠狠撸s: https://docs.google.com/presentation/d/1uF8q6ueJWcAnhKTQsZxLE0Bo9PwgRNwCeuGV_ZgbSyU
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*Deep Learning for Natural Language Processing_FDP on 16 June 2025 MITS.pptx
Deep Learning for Natural Language Processing_FDP on 16 June 2025 MITS.pptxresming1
?
This gives an introduction to how NLP has evolved from the time of World War II till this date through the advances in approaches, architectures and word representations. From rule based approaches, it advanced to statistical approaches. from traditional machine learning algorithms it advanced to deep neural network architectures. Deep neural architectures include recurrent neural networks, long short term memory, gated recurrent units, seq2seq models, encoder decoder models, transformer architecture, upto large language models and vision language models which are multimodal in nature.VARICELLA VACCINATION: A POTENTIAL STRATEGY FOR PREVENTING MULTIPLE SCLEROSIS
VARICELLA VACCINATION: A POTENTIAL STRATEGY FOR PREVENTING MULTIPLE SCLEROSISijab2
?
Multiple sclerosis (MS) is a debilitating neurological condition affecting approximately 2.9 million people worldwide. Its cause remains unclear but environmental factors, such as post-childhood Epstein-Barr virus (EBV) infection, are thought to contribute to MS incidence. Montreal Dreamin' 25 - Introduction to the MuleSoft AI Chain (MAC) Project
Montreal Dreamin' 25 - Introduction to the MuleSoft AI Chain (MAC) ProjectAlexandra N. Martinez
?
Montreal Dreamin' 25 - Introduction to the MuleSoft AI Chain (MAC) ProjectFundamentals of Digital Design_Class_12th April.pptx
Fundamentals of Digital Design_Class_12th April.pptxdrdebarshi1993
?
Boolean Algebra and Combinational Logic CircuitDecoding Kotlin - Your Guide to Solving the Mysterious in Kotlin - Devoxx PL ...
Decoding Kotlin - Your Guide to Solving the Mysterious in Kotlin - Devoxx PL ...Jo?o Esperancinha
?
Kotlin can be very handy and easy to use. Kotlin offers the possibility to develop code that is easy to understand, safe, immutable, and thus predictable and follows standards that avoid side effects. I realized that very quickly after I started my Kotlin journey that already amounts to more than 5 years.
This is the third version of this presentation focused on more detail explaining inline, crossinline, tailrec and as a bonus a quick run through unnamed classes.3. What is the principles of Teamwork_Module_V1.0.ppt
3. What is the principles of Teamwork_Module_V1.0.pptengaash9
?
Demonstrate the role of teamwork in the execution of systems engineering.
Describe the principles of successful teams.
Week 6- PC HARDWARE AND MAINTENANCE-THEORY.pptx
Week 6- PC HARDWARE AND MAINTENANCE-THEORY.pptxdayananda54
?
Basics of computer hardware for beginners 4th International Conference on Computer Science and Information Technology (...
4th International Conference on Computer Science and Information Technology (...ijait
?
4th International Conference on Computer Science and Information Technology
(COMSCI 2025) will act as a major forum for the presentation of innovative ideas,
approaches, developments, and research projects in the area computer Science and
Information Technology. It will also serve to facilitate the exchange of information
between researchers and industry professionals to discuss the latest issues and
advancement in the research area.02 - Ethics & Professionalism - BEM, IEM, MySET.PPT
02 - Ethics & Professionalism - BEM, IEM, MySET.PPTSharinAbGhani1
?
ethics & professionalism based on BEMAd
Astricon 2016
- 1. J?ran Vinzens linkedin.com/in/jvinzens VoIP security Secure your VoIP system and prevent fraud
- 3. J?ran Vinzens linkedin.com/in/jvinzens In the end it’s all about the money.
- 4. J?ran Vinzens linkedin.com/in/jvinzens Most common fraud scenarios ● International revenue share fraud (IRSF) ● Payment fraud ● T-DOS / DOS ● Identity theft
- 5. J?ran Vinzens linkedin.com/in/jvinzens International revenue share fraud (IRSF)
- 6. J?ran Vinzens linkedin.com/in/jvinzens Payout: ● via Western Union, PayPal, bitcoin, MoneyGram, etc. ● from $0.00013 to $2.325 / min ● average about $0.094 / min International revenue share fraud (IRSF)
- 7. J?ran Vinzens linkedin.com/in/jvinzens $46bn in 2014 (source: Simwood, Kamailioworld) International revenue share fraud (IRSF)
- 8. J?ran Vinzens linkedin.com/in/jvinzens ● Steal money from people with a phone account ● Call expensive numbers ● The account owner gets billed ● ~120 IRS carriers International revenue share fraud (IRSF)
- 10. J?ran Vinzens linkedin.com/in/jvinzens ● Steal money from companies ● Create accounts with false credit cards or false paypal accounts ● Call payout numbers to earn vouchers / credits Payment Fraud
- 11. J?ran Vinzens linkedin.com/in/jvinzens ● Extortion, boosting a competitor’s service ● Blocking of services by sending IP traffic to server ● Not VoIP specific ● Mitigation services like Voxility, Cloudflare, etc. Denial of service
- 12. J?ran Vinzens linkedin.com/in/jvinzens ● Extortion, boosting a competitor’s service ● Blocking of phone based services ● Useing multiple phone systems to generate calls... ...lots of them ● All telephone services are potential targets Telephony denial of service / service degradation
- 13. J?ran Vinzens linkedin.com/in/jvinzens ● Stealing or creating identities ● Buying stuff or creating accounts (e.g. eBay) ● All telephone systems are affected Identity theft
- 14. J?ran Vinzens linkedin.com/in/jvinzens ● Frauders exploit available security holes ● Lists of vulnerable accounts are traded ● Other frauders use the accounts for e.g. IRSF Who is behind all that?
- 15. J?ran Vinzens linkedin.com/in/jvinzens ● Hacker ● Carrier ● Service provider of e.g. IRSF numbers Who gets the Money?
- 16. J?ran Vinzens linkedin.com/in/jvinzens How to better secure VoIP systems?
- 17. J?ran Vinzens linkedin.com/in/jvinzens ● Port scan ● SIP invites ● SIP options ● SIP register How do I get hacked?
- 18. J?ran Vinzens linkedin.com/in/jvinzens Do not make your system available from the internet if not needed. (RFC 1918 IP Ranges) Use VPN or other tunnelling techniques Do not use default SIP port 5060 Network
- 19. J?ran Vinzens linkedin.com/in/jvinzens Firewall Use a firewall to prohibit access ● Use GEO blocking if you know your customers -A INPUT -m state --state NEW -m geoip --source-country ES,US,SE,PL,CH,LU,PT,SV -j CHECK-PORT -A CHECK-PORT -p udp -m udp --dport 5060 -j ACCEPT ● Use Fail2Ban for smaller systems (http://www.fail2ban.org/wiki/index.php/Asterisk)
- 20. J?ran Vinzens linkedin.com/in/jvinzens Do not expose your PBX to the internet Use SBC for protection, e.g. Kamailio SIP service
- 21. J?ran Vinzens linkedin.com/in/jvinzens Use strong passwords! 123456 ziSh?oog9fo2Ae!ghi_e2wo SIP service
- 22. J?ran Vinzens linkedin.com/in/jvinzens Set call limits for users sip.conf [peer] call-limit = 2 Kamailio: pipelimit, pike SIP service
- 23. J?ran Vinzens linkedin.com/in/jvinzens Do not use [default] context in asterisk dialplan SIP service
- 24. J?ran Vinzens linkedin.com/in/jvinzens Never use exten => _X.,1,Dial(SIP/${EXTEN}@trunk) always validate dialled numbers SIP service
- 25. J?ran Vinzens linkedin.com/in/jvinzens Drop SIP options completely or provide a fixed answer. if (method == "OPTIONS") { # Answer sl_send_reply("200","OK"); exit; # Drop drop; exit; } SIP service
- 26. J?ran Vinzens linkedin.com/in/jvinzens Drop requests from bad useragents if ( $ua =~ "friendly-scanner" || $ua =~ "sipvicious” ) { drop; exit; } SIP service
- 27. J?ran Vinzens linkedin.com/in/jvinzens Maintain blacklists with numbers and prefixes Kamailio: Module userblacklist Asterisk: exten => s,1,GotoIf(${BLACKLIST()}?blacklisted) SIP service
- 28. J?ran Vinzens linkedin.com/in/jvinzens Do not allow calls to “fraud destinations” exten => _011252.*,1,Hangup() SIP service
- 29. J?ran Vinzens linkedin.com/in/jvinzens ● Set http passwords in phones ● Prohibit external http access to the phone ● Disable TR62 on your modem / router SIP phone / endpoint
- 30. J?ran Vinzens linkedin.com/in/jvinzens ● Use pre-paid services ● Check your bills ● Talk to your provider! ● Validate your customers ● Limit access for trial / test customers (and explain why) Administrative
- 31. J?ran Vinzens linkedin.com/in/jvinzens ● Homer ● Icinga ● Cacti ● Kibana / Logstash ● NTOP ● observium Monitoring
- 32. J?ran Vinzens linkedin.com/in/jvinzens All of us have to keep fighting against fraud! Stay safe!