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VSAT & VoIP

       Onno W. Purbo
      Onno@indo.net.id
Fokus Pembicaraan ..
   VSAT IP
   VoIP
   Share Akses (kalau ada waktu)
VSAT
Spesifikasi ..
   Antenna Kecil < 1 meter s/d 3 meteran
   Frekuensi Umumnya C-Band (4-6GHz)
   Kalau berani mencoba Ku-Band
Aplikasi
   Receive Only
   Transmit / Receive
Receive Only
   Stock market & other news broadcasting
   Training or continuing education from a
    distance
   Distribute financial trends & analyses
   Introduce new products at geographically
    dispersed locations
   Update market related data, news
   Distribute video or TV programs
   Distribute music in stores & public areas
   Relay advertising to electronic signs in retail
    stores
Konvensional DVB

         1.5Mbps
                                         Satellite




          Satellite dish
                                                     Satellite dish




WARNET                                InterNet
                           33.6Kbps
                                                          melesat.net
PC DVB Card
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Ppt voip-vsat-3-2002
Transmit / Receive
   Interactive computer transactions
   Internet
   Video Teleconferencing
   Database inquiries
   Bank transactions, ATM
   Reservation systems
   Distributed remote process control
   Voice communications
   Electronic fund transfer at Point-of-Sale
   E-mail
Konfigurasi VSAT
   Point To Point (SCPC)
   Point To Multipoint (TDM-TDMA)
   On Demand (DAMA)
Single Channel Per Carrier
SCPC Bandwidth
TDM-TDMA
TDM-TDMA Bandwidth
Demand Assigned Multiple
Access (DAMA)
   Network Control System (NCS) 
    Switch Board di Angkasa.
   Jika ada node yang membutuhkan
    hubungan frekuensi baru di alokasikan.
   Membebaskan frekuensi jika tidak
    digunakan.
   Mendukung operasi full mesh, point-to-
    point, point-to-multipoint.
Inti VSAT IP
   Tambahkan Router dibelakang modem
    VSAT
Ppt voip-vsat-3-2002
VoIP
Model Usaha VoIP

    Corporate Users        FAX         Minute
                                    Exchange                      FAX      Corporate Users




                                         Internet                   ITSP
WARTEL / WARNET                                                                      net Cafe




                         ITSP       Managed IP
        Personal User                                                        Personal User



                        Indonesia                   Luar Negeri
           Telepon                                                              Telepon
Dalam Bahasa Sederhana ..
Telp Biasa vs. VoIP
   Hanya satu      Banyak Penumpang
    penumpang
Teknologi VoIP sederhana
Internet Telephone
Dialer
Video Conference
Voice Quality Comparison
VoIP Blaster  US$50-an
Internet LineJACK US$99
Infoaccel US$99.95
PCMCIA ShelCad
Solusi Gateway Sederhana
VoiceTronix (8 port)
InfoGate 3010 (4 Port)
iEnsemble!  8 port
Planet VoIP Gateway
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Aplikasi Desktop VoIP
   IntraNet Communication
   Remote Call Forwarding
   Distributed Call Center
   Virtual PBX
   Line Doubling
   Personal Iphone Calling
Personal Iphone Calling
Distributed Call Center
Line Doubling
Isu Quality of Service (QoS)
   Kekurangan Bandwidth
   Delay terlalu lama.
   Jitter / Variasi delay.
QoS
   Resource Reservation Protocol (RSVP)
   Real Time Protocol (RTP)
   Compressed Real Time Protocol (CRTP)
       Traffic Shaping
       Queuing: Custom Queuing, Weighted Fair
        Queuing.
       Congestion Control: Random Early Detection.
       Effisiensi Jaringan: link fragmentation &
        interleaving.
Metoda Kompresi
Kompresi            Kbps   MIPS   ms      MOS
G.711PCM            64     0.34   0.125   4.1
G.726 ADPCM         32     14     0.125   3.85
G.728 LD-CELP       16     33     0.625   3.61
G.729 CS-ACELP
                    8      20     10      3.92
G.729 x2 Encoding   8      20     10      3.27
G.729 x3 Encoding   8      20     10      2.68
G.729a CS-ACELP     8      10.5   10      3.7
G.723.1 MPMLQ       6.3    16     30      3.9
G.723.1 ACELP
WAN QoS-Enabling Tech.
Classification
   Layer 3 (IP)
       IP Precedence; VoIP  5.
       Differentiated Services Code Point (DSCP)
   Layer 2 (MAC) schemes
       Voice  RTP
       Voice  UDP
       Voice  Port 16383 - 32767
Prioritizing
   Voice Traffic
       Priority Queuing (PQ)
   Data Traffic
       weighted fair queuing (WFQ)
       class-based weighted fair queuing
        (CBWFQ)
Prioritizing
Sharing Akses
Konsep WARNET
  Konvensional



LAN               InterNet

        Gateway
Mengembangkan Konsep
   WARNET ..
   RT/RW-Net
   Kelurahan Net
   Mall Net
   Perkantoran Net
   Apartemen Net
Sharing Bandwidth
   Akses Satelit
       Downlink rata-rata 1.1-1.5Mbps
       US$3000-6000 / bulan
       Rp. 24-48 juta / bulan
   Sharing Bandwidth
       WARNET Rata-2 Rp. 2-3 juta / bulan
Two Way Satellite

                  WARNET



                                                                                       InterNet
WARNET                                                    Satellite




         WARNET


                           Radio tower   Satellite dish               Satellite dish
Share Access Wireless
11Mbps
   Lokasi rumah Onno W. Purbo
Spesifikasi PC Gateway
   Pentium 166MHz
   Memory 64Mbyte
   Harddisk 2Gbyte
   VGA Card S3 2Mbyte
   Running Linux Mandrake 8.0
Spesifikasi Link
   24 jam operasional
   11Mbps ke Askes Point
   256Kbps ke Internet
   Rp. 330.000 / bulan (500MByte)
   Tanpa Telkom Sama Sekali
Konfigurasi LAN
   UTP
   10Mbps shared bus
   Hub bekas (Rp. 75.000 / buah)
   Tarik kabel UTP ke tetangga
   Tembok di bor
Wireless 11Mbps PCI Card
2.4Ghz Ant.

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Ppt voip-vsat-3-2002