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NAT Traversal. 2008 Feb 25 th. Panasonic Communications Co.,Ltd Office Network Company Network SE Team. Account info. Management site: It is used for checking the charge or choosing the phone services. CLIP: Calling Line Identification Presentation - PowerPoint PPT Presentation
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NAT Traversal
Panasonic Communications Co.,Ltd
Office Network Company
Network SE Team
2008 Feb 25th
Account infoAccount info
VAD： Voice Activity Detection If it work correctly then voice packet traffic become reduced so it is good.But it rarely cause a trouble. Bad voice quality or call cut off.
STUN / SBC.Please refer the “Programming Manual for SIP”.
Management site: It is used for checking the charge or choosing the phone services.CLIP: Calling Line Identification PresentationCLIR: Calling Line Identification RestrictionStar code is a special code which provider support.In case of Bellshare (German provider) *67 is used for CLIR.When you call *67+area code + phone number then it become a CLIR call.
There are other way to stop Caller ID sending if provider support. Logging into the provider web site (using 05) and CLIP off.(Some provider permit user to change some setting on their management site.)
[ITSP Essential information]
1 Provider name
2 Provider type ISP or Carrier
3 Type of the network Closed / Open4 Provider URI http:// 5 Management site http://
> Login ID
> Login Password
6 Address (Country)
7 Area code
8 The method of an international call
[Service interface functionalities]
10 CLIP* Support
11 CLIR* Support
Star Code for CLIP/CLIR
WEB setting
12 FAX relay (T.38) Support
13 DTMF (RFC2833) Support
14 Hold Support
15 Transfer Support
16 Conference Support
17 DDI Support
18 VAD* Support
19 STUN Support
> If yes then Server name
20 SBC (Session Border Controller) Support
[SIP Telephone Settings Essential information] <Server Settings>
30 Proxy Server <compulsory>
31 Proxy Server port
32 Registrar Server
33 Domain Name
<Account Settings 1>
40-1 SIP Account <compulsory>
41-1 Authentication ID <compulsory>
42-1 Authentication Password <compulsory>
43-1 Incoming Number <compulsory>
44-1 DDI Number
<Account Settings 2>
40-2 SIP Account <compulsory>
41-2 Authentication ID <compulsory>
42-2 Authentication Password <compulsory>
43-2 Incoming Number <compulsory>
44-2 DDI Number <Codec Settings> 50 Codec 51 Packet Interval 52 VAD 53 DTMF relay
*NAT Traversal type*NAT Traversal type
SIP Service Provider
SIP Server STUN Server
SIP Service Provider
SIP Server
SIP Service Provider
SBC
SIP Server
*NAT: Network Address Translation
*SBC: Session Boarder Controller
STUN Method Fixed Global IP address Method SBC* Method
TDE
NAT Router
Local Area Network
MediaServer
ProxyServer
Nat Off (SBC method)
SIP PhoneSIP Phone
WiresharkWireshark
L2 SwitchL2 Switch L2 SwitchL2 Switch
TDETDE
RouterRouterRouterRouter
192.168.2.9192.168.2.10
217.10.79.23 217.10.68.75 Media Server217.10.68.75
TDE192.168.2.10
Proxy Server217.10.79.23
TDE192.168.2.9
SBC
* SBC: Session Border Controller
61.199.255.184
DSL modemDSL modem
Nat Off (SBC method): outgoing call
TDE192.168.2.10
Router61.199.255.184
TDE192.168.2.9
NAPT
LAN sideLAN side WAN sideWAN side
①①
④④③③
②②
⑤⑤
Router61.199.255.184
Router61.199.255.184
Proxy Server217.10.79.23
Media Server217.10.68.75
NAPT
Nat Off (SBC method): incoming call
TDE192.168.2.10
TDE192.168.2.9
Router61.199.255.184
Proxy Server217.10.79.23
LAN sideLAN sideWAN sideWAN side
NAPT
①①
④④③③
②②
Media Server217.10.68.75
NAPT
Router61.199.255.184
Router61.199.255.184
STUN
SNOM phone217.10.68.75
Proxy Server217.10.79.23
TDE192.168.2.9
TDE218.116.146.6
217.10.68.75
STUNServer
ProxyServer
SIP PhoneSIP Phone
WiresharkWireshark
L2 SwitchL2 Switch L2 SwitchL2 Switch
TDETDE
RouterRouterRouterRouter
192.168.2.9192.168.2.10
217.10.79.23
61.199.255.184
DSL modemDSL modem
TDE192.168.2.10
TDE192.168.2.9
SNOM phone218.116.146.6
Router61.199.255.184
Proxy Server217.10.79.23
LAN sideLAN side WAN sideWAN side
STUN: outgoing call
①①
④④③③
②②
Router61.199.255.184
Router61.199.255.184
TDE192.168.2.10
Proxy Server217.10.79.23
TDE192.168.2.9
Router61.199.255.184
Proxy Server217.10.79.23
LAN sideLAN sideWAN sideWAN side
STUN: incoming call
SNOM phone218.116.146.6
Router61.199.255.184
①①
④④③③
②②
SBC / STUN
TDE Router
TDE
Server
Router Server
SBC
STUN
REGISTER
192.168.2.101:35060
192.168.2.101:35060 192.168.2.101:35060
61.199.255.184 : 32844
REGISTER
192.168.2.101:35060
61.199.255.184: 35060 61.199.255.184 :35060
61.199.255.184 :32844
IP
SIP
IP
SIP
SBC / STUN
INVITE sip:[email protected] SIP/2.0ViaVia: SIP/2.0/UDP 10.16.1.10:35060;branch=z9hG4bK00007d74;rportMax-Forwards: 70To: sip:[email protected]: sip:[email protected];tag=28482Call-ID: [email protected]: 1 INVITEContactContact: sip:[email protected]:35060Supported: timer,100relSession-Expires: 180Allow: INVITE,ACK,CANCEL,BYE,PRACK,REGISTER,UPDATEContent-Type: application/sdpUser-Agent: V1.000iContent-Length: 270
v=0o=- 1 1 IN IP4 10.16.1.10s=-c=IN IP4 10.16.1.10t=0 0m=audio 16000 RTP/AVP 8 0 18 101a=rtpmap:8 PCMA/8000/1a=rtpmap:0 PCMU/8000/1a=rtpmap:18 G729/8000/1a=rtpmap:101 telephone-event/8000a=fmtp:101 0-15a=sendrecva=ptime:20a=rtcp:16001
■IP-Address: Global IP address (10.16.1.10) ■RTP port: 16000 ～■* 番号は変更しないﾎﾟｰﾄ
INVITE sip:[email protected] SIP/2.0ViaVia: SIP/2.0/UDP 192.168.2.101:35060;branch=z9hG4bK00007d74;rportMax-Forwards: 70To: sip:[email protected]: sip:[email protected];tag=28482Call-ID: [email protected]: 1 INVITEContactContact: sip:[email protected]:35060Supported: timer,100relSession-Expires: 180Allow: INVITE,ACK,CANCEL,BYE,PRACK,REGISTER,UPDATEContent-Type: application/sdpUser-Agent: V1.000iContent-Length: 270
v=0o=- 1 1 IN IP4 192.168.2.102s=-c=IN IP4 192.168.2.102t=0 0m=audio 12000 RTP/AVP 8 0 18 101a=rtpmap:8 PCMA/8000/1a=rtpmap:0 PCMU/8000/1a=rtpmap:18 G729/8000/1a=rtpmap:101 telephone-event/8000a=fmtp:101 0-15a=sendrecva=ptime:20a=rtcp:12001
■IP-Address: Local IP address■RTP Port: 12000 ～■ Signaling IP address is different from SDP IP address
＜＜ STUNSTUN＞＞＜＜ SBCSBC＞＞
a-line before m-line
Audio type change
Session (IP address) change
TDE192.168.100.101
ITSP10.20.11.14
ITSP10.20.11.31
MAC address error: one way audio
MAC address error: one way audio
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