Unmanaged A2P SMS traffic led to poor customer experience and lost revenue for Grameenphone. To address this, Grameenphone implemented a managed SMS firewall from 365squared that filtered and monitored all inbound SMS traffic. This blocked unauthorized traffic and routed legitimate traffic through Grameenphone's gateway, resulting in reduced spam, increased revenue, and regulatory compliance. Continuous monitoring is needed, as fraudsters adapt tactics over time. The initiative was very successful and appreciated by regulators.
2. 2
Why the need to manage A2P SMS
Customer
Experience
SMS Spoo鍖ng
Spam/
Unsolicited
SMS
SMS Faking
Brand image
Commercial
Impact
Local Bulk SMS
Revenue
Cost of
signalling
A2P SMS
revenue loss
Unmanaged A2P SMS traf鍖c leads to bad customer
experience and revenue loss.
Regulatory
Directive
Directive issued
in 2013
3. 3
Pre-鍖ltering scenario
Roaming
Partners and
International SMS
Providers
Grameenphone End Customer
A2P SMS Client
(Banks, Airlines,
Social Media ...)
SMS Providers used to send huge volumes of wanted and
unwanted SMS traf鍖c for free. Grameenphone had no
control or visibility of this traf鍖c, used to get zero revenue,
higher signalling costs and several customer complaints.
Domestic
Network
Operators and
SMS Providers
4. 365squared 24x7
Managed Service
4
Post-鍖ltering scenario
Dialogue
Communications
Grameenphone
with Haud
Firewall
End Customer
A2P SMS Clients
and SMS
Providers
With a fully managed SMS 鍖rewall installed on the
Grameenphone network, all A2P traf鍖c from local and
international routes were blocked and traf鍖c routed
via the legitimate SMS Gateway.
5. 5
Monitoring all inbound entry points
5
Roaming Partners
Enterprise Clients
SMS Aggregators
Local Operators
SMS
Firewall and
Monitoring
PlatformSMS & Roaming
Hubs
SCCP Carriers
7. 7
Immediate results - Spam and Fraud
Signi鍖cant reduction in spam messages.
Fraudsters coming up with new methods.
Constant monitoring is key.
Source: Grameenphone
8. 8
Results achieved
Spoof / Fraudulent SMS
Incremental Revenue
Local Bulk SMS
Revenue Protection
SS7 signalling load
Regulatory Compliance
98% reduction
Substantial annual
revenue in millions USD
114% growth in local
Bulk SMS business
Balanced MSU count
First and only MNO in
Bangladesh to be compliant
9. 9
Lessons learnt
A2P Traf鍖c
Continuous growth
Signi鍖cant revenue
potential
Higher risks but higher
rewards
Fraudsters
Smarter than assumed
Highly active
Very ef鍖cient in shifting
traf鍖c
Routes
Bypass can come from
any route
Local A2P via international
routes
International A2P via local
routes
Blocking
Needs to be dynamic and
ever evolving
24x7 monitoring and
management is key for
success
10. 10
Feedback from Grameenphone
SMS Filtering is not only about blocking but managing your
A2P SMS ef鍖ciently.
Alignment with local operators, local SMS providers and
regulator necessary.
This is a continuous process and planning is key.
Very successful
initiative and
greatly
appreciated by
Regulator
Picture perfect
implementation
and operations
Revenue
assurance and
fraud prevention
achieved
13. 13
About 365squared
Setup in 2013 with the objective to provide the
mobile operator community with a consolidated
choice of quality services in the messaging domain.
The company is run by an experienced team of
professionals drawn from the telecoms business.
We help our clients generate
additional revenue using a
combination of sophisticated
technology and our
management skills.
14. 14
About Grameenphone
Largest operator in Bangladesh with more
than 50 million subscribers
Largest operator in the Telenor Group
400+ roaming partners
GSMA member since 1997
Launched 3G in 2013