voip internet

1. Mengenal
Teknologi VOIP
Deris Stiawan

2. Internet
1990-21st Century
Mainframe
1960-1970s
Mini1970-1980s PC/LAN1980-1990s
Voice
Networking
Analog PBXs
1960-1970s
Digital PBXs
1970-1990s
PC PBXs
1990-2000s
Data
Networking

3. Pendahuluan
Komunikasi Data
Komunikasi Suara
Workstation
Server
Modem Modem
Internet
PSTN

4. New world applications
IP
Branch Office
V
Headquarters (or SP)
Application Servers

5. VOIP
Teknologi komunikasi suara dengan
melewatkan voice pada jaringan
internet protocol (IP)
Membungkus (encapsulated) voice
dengan encapsulations protocol
jaringan IP
Dilewatkan dengan paket data lainnya
di jaringan Internet
Menggunakan sebuah protocol

8. Dilewatkan pada jaringan Internet
bukan pada jaringan PSTN
PSTN = Public Switch Telephone
Network. Jaringan infrastruktur
telphone yang diselengarakan teleco
(telkom

9. Mengapa voip
Tidak dikenakan biaya rekening telpon
Satu link bisa digunakan untuk data n voice
ekonomis
Keutungan yang lebih dari PSTN
Voice Mail
Audioconferencing
Unifed Messaging
Directory Services
Presence
Video Conferences
Click to dial
Dial Plans
Soft clients

11. Komponen VOIP
USER AGENT
PROXY
PROTOCOL
CODEC (Coder Decoder)

12. USER AGENT
Softphone SIP
SJphone
X-Lite
Softphone IAX
Idefisk
IaxLite
Softphone H.323
Netmeeting

13. IP Phone
Berbentuk seperti telepon biasa, terhubung langsung ke
jaringan IP (tidak melalui perangkat lain)
USB Phone/ Wireless/ Bluetooth
Berbentuk seperti telepon genggam, menggunakan
kabeldan terhubung ke PC melalui port USB
Internet Telephony Gateway (ITG)
Port FXS terhubung ke telepon biasa
Port FXO terhubung ke PSTN langsung atau melalui PBX
Analog Telephone Adaptor (ATA)
ITG dengan port FXS saja

14. PROXY
Softswitch
Open Source
Asterisk (http://www.asterisk.org)
OpenSER (http://www.openser.org)
SER (http://www.iptel.org/ser/)
Yate (http://yate.null.ro)
Non Open Source
Axon (http://www.nch.com.au/pbx/)
OnDO SIP Server (http://www.brekeke.com)

15. PROTOCOL
IETF
SIP
ITU-T
H.323
Asterisk
IAX

16. VoIP Protocol Description
H.323 • ITU standard protocol for interactive conferencing.
• Evolved from H.320 ISDN standard.
• Flexible, complex.
Media Gateway Control Protocol
(MGCP)
• Emerging standard for Public Switched Telephone Network
(PSTN) gateway control, thin device control.
Session Initiation Protocol (SIP) • IETF protocol for interactive and non-interactive
conferencing.
• Simpler, but less mature, than H.323.
Real-Time Transport Protocol (RTP) • IETF standard media streaming protocol.
Real-Time Transport Control Protocol
(RTCP)
• Protocol that provides out-of-band control information for
an RTP flow.
Low Latency Queuing (LLQ) • Priority queuing technique that uses priority
queuing-class-based weighted fair queuing (PQ-CBWFQ).

17. CODEC
Open Source dan Free
GSM
Ilbc
Speex
G711
Licensed
G729
G723

18. Bandwidth
Coding
Algorithm
Voice
Bandwidth
(Kbps)
Coded
Frame
Size
(bytes)
Voice
Frames
in VoIP
Packet
IP+UDP+R
TP Header
Size
(bytes)
Layer 2
Technology
Used
Layer 2
Header
Size
(bytes)
Total
Bandwidth
Required
G.711 64 160 2 40 Ethernet II 26 90.4
G.711 64 160 2 40 MLPPP 7 82.8
G.711 64 160 2 2 (cRTP) MLPPP 7 67.6
G.729 8 20 2 40 Ethernet II
(Cisco
Default)
26 34.4
G.729 8 20 2 40 MLPPP 7 26.8
G.729 8 20 2 2 (cRTP) MLPPP 7 11.6

19. Variant VoIP
PC ke PC (YM!, Skype, Merdeka,…)
Telphone ke Telphone (memerlukan
geatekeeper, ITG)
Telphone (HP) ke operator

20. Quality of Services (QoS)
Classification
Identify and Split
Traffic into
Different Classes
Prioritize,
Protect and
Isolate Traffic
Based on
Markings
Mark Traffic
According to
Behavior and
Business
Policies
Policing
Marking
Queuing
Shaping
Discard Misbehaving
Traffic to
Maintain Network
Integrity
Control Bursts
and Conform
Traffic

21. Legal / Ilegal ?
Harus ada izin dari POSTEL sebagai
penyedia layanan VoIP di indonesia
Legal jika digunakan untuk internal
perusahaan dan penggunaan pribadi
(tidak mengkoneksikan ke operator)
Monopoli operator pemerintah

22. Issues VoIP
Bandwidth
Jaringan
Keamanan
Solusi Teknologi ITG
Pelatihan
Policy

23. Implementasi VOIP