This document discusses VSAT, VoIP, and shared internet access. It provides details on VSAT specifications and applications including receive-only and transmit/receive uses. VoIP technologies like softphones, gateways, and codecs are explained. The concept of a shared access network is introduced where a satellite bandwidth is shared between multiple users like a neighborhood network to reduce costs. Wireless options for sharing a high-speed 11Mbps connection are also described.

1. VSAT & VoIP
Onno W. Purbo
Onno@indo.net.id

2. Fokus Pembicaraan ..
 VSAT IP
 VoIP
 Share Akses (kalau ada waktu) …

3. VSAT

4. Spesifikasi ..
 Antenna Kecil < 1 meter s/d 3 meteran
 Frekuensi Umumnya C-Band (4-6GHz)
 Kalau berani mencoba Ku-Band

5. Aplikasi
 Receive Only
 Transmit / Receive

6. 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

7. Konvensional DVB
1.5Mbps
Satellite
Satellite dish
Satellite dish
WARNET InterNet
33.6Kbps
melesat.net

8. PC DVB Card

11. 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

12. Konfigurasi VSAT
 Point To Point (SCPC)
 Point To Multipoint (TDM-TDMA)
 On Demand (DAMA)

13. Single Channel Per Carrier

14. SCPC Bandwidth

15. TDM-TDMA

16. TDM-TDMA Bandwidth

17. 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.

18. Inti VSAT IP
 Tambahkan Router dibelakang modem
VSAT

20. VoIP

21. 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

22. Dalam Bahasa Sederhana ..

23. Telp Biasa vs. VoIP
 Hanya satu  Banyak Penumpang
penumpang

24. Teknologi VoIP sederhana

25. Internet Telephone

26. Dialer

27. Video Conference

28. Voice Quality Comparison

29. VoIP Blaster – US$50-an

30. Internet LineJACK US$99

31. Infoaccel US$99.95

32. PCMCIA ShelCad

33. Solusi Gateway Sederhana

34. VoiceTronix (8 port)

35. InfoGate 3010 (4 Port)

36. iEnsemble! – 8 port

37. Planet VoIP Gateway

42. Aplikasi Desktop VoIP
 IntraNet Communication
 Remote Call Forwarding
 Distributed Call Center
 Virtual PBX
 Line Doubling
 Personal Iphone Calling

43. Personal Iphone Calling

44. Distributed Call Center

45. Line Doubling

46. Isu Quality of Service (QoS)
 Kekurangan Bandwidth
 Delay terlalu lama.
 Jitter / Variasi delay.

47. 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.

48. 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

49. WAN QoS-Enabling Tech.

50. 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

51. Prioritizing
 Voice Traffic
 Priority Queuing (PQ)
 Data Traffic
 weighted fair queuing (WFQ)
 class-based weighted fair queuing
(CBWFQ)

52. Prioritizing

53. Sharing Akses …

54. Konsep WARNET
Konvensional
LAN InterNet
Gateway

55. Mengembangkan Konsep
 WARNET ..
 RT/RW-Net
 Kelurahan Net
 Mall Net
 Perkantoran Net
 Apartemen Net

56. 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

57. Two Way Satellite
WARNET
InterNet
WARNET Satellite
WARNET
Radio tower Satellite dish Satellite dish

58. Share Access Wireless
11Mbps
 Lokasi rumah Onno W. Purbo

59. Spesifikasi PC Gateway
 Pentium 166MHz
 Memory 64Mbyte
 Harddisk 2Gbyte
 VGA Card S3 2Mbyte
 Running Linux Mandrake 8.0

60. Spesifikasi Link
 24 jam operasional
 11Mbps ke Askes Point
 256Kbps ke Internet
 Rp. 330.000 / bulan (500MByte)
 Tanpa Telkom Sama Sekali

61. Konfigurasi LAN
 UTP
 10Mbps shared bus
 Hub bekas (Rp. 75.000 / buah)
 Tarik kabel UTP ke tetangga
 Tembok di bor

62. Wireless 11Mbps PCI Card

63. 2.4Ghz Ant.