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VoIP overview

VoIP overview. Onno W. Purbo onno@indo.net.id. VoIP di COMDEX 2000. VoIP di COMDEX 2000. Lokasi Las Vegas, US Calling Card US$10 Waktu bicara US-Jakarta 90 menit Artinya .. Rp. 1000 / menit (US-Jakarta). Gambaran Umum Internet. Model Usaha VoIP. Kerja Sederhana Telepon.

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VoIP overview

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  1. VoIP overview Onno W. Purbo onno@indo.net.id

  2. VoIP di COMDEX 2000

  3. VoIP di COMDEX 2000 • Lokasi Las Vegas, US • Calling Card US$10 • Waktu bicara US-Jakarta 90 menit • Artinya .. Rp. 1000 / menit (US-Jakarta)

  4. Gambaran Umum Internet

  5. Model Usaha VoIP

  6. Kerja Sederhana Telepon

  7. Kerja sederhana VoIP

  8. Konversi ke Paket Data

  9. Penghematan Saluran ..

  10. Dalam Bahasa Sederhana ..

  11. Hanya satu penumpang Banyak Penumpang Telp Biasa vs. VoIP

  12. Teknologi VoIP sederhana

  13. Internet Telephone

  14. Dialer

  15. Video Conference

  16. Internet PhoneJACK

  17. Connection PhoneJACK

  18. Voice Quality Comparison

  19. Solusi Gateway Sederhana

  20. VoiceTronix (8 port)

  21. VoIP Profesional

  22. Gatekeeper • Lucent PacketStar IP Gatekeeper • 23.500 DSO • 2.300.000 calls / day (one zone) • 7.800.000 calls / day (multi zone) • Cisco CallManager • Windows NT • Quicknet • H.323 Internet SwitchBoard

  23. Gateway • Lucent PathStar • 80.000 POTS • 10.000 xDSL • Cisco DE-30+ • 30 voice on E1 • Cisco AT-2, 4, 8 • Analog loop RJ-11, 2, 4, 8 POTS.

  24. Conceptual Framework • H.323

  25. Open Standard

  26. H.323 Benefit • Codec Standards. • Interoperability. • Network Independence. • Platform & Application Independence. • Multipoint Support. • Bandwidth Management. • Multicast Support. • Flexibility. • Inter-Network Conferencing.

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

  28. 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.

  29. Metoda Kompresi

  30. WAN QoS-Enabling Tech.

  31. 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

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

  33. Prioritizing

  34. Link-Efficiency Techniques • Voice Compression (e.g. G.723). • Compressed RTP • 40 byte IP+UDP+RTP  2-4 bytes. • Voice Activity Detection (VAD). • Link Fragmentation & Interleaving. • Frame Relay – FRF.12 • Serial Link – Multilink PPP (MLP).

  35. Terima Kasih

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