Version 5.2 359 September 2007
SIP User's Manual 7. Telephony Capabilities
îš„ F1 (10.8.201.108 >> 10.8.201.10 INVITE):
INVITE sip:1000@10.8.201.10;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacsiJkDGd
From: <sip:8000@10.8.201.108>;tag=1c5354
To: <sip:1000@10.8.201.10>
Call-ID: 534366556655skKw-8000--1000@10.8.201.108
CSeq: 18153 INVITE
Contact: <sip:8000@10.8.201.108;user=phone>
User-Agent: Audiocodes-Sip-Gateway/MP-108 FXS/v.4.20.299.410
Supported: 100rel,em
Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,
NOTIFY,PRACK,REFER,INFO
Content-Type: application/sdp
Content-Length: 208
v=0
o=AudiocodesGW 18132 74003 IN IP4 10.8.201.108
s=Phone-Call
c=IN IP4 10.8.201.108
t=0 0
m=audio 4000 RTP/AVP 8 96
a=rtpmap:8 pcma/8000
a=rtpmap:96 telephone-event/8000
a=fmtp:96 0-15
a=ptime:20
îš„ F2 (10.8.201.10 >> 10.8.201.108 TRYING):
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacsiJkDGd
From: <sip:8000@10.8.201.108>;tag=1c5354
To: <sip:1000@10.8.201.10>
Call-ID: 534366556655skKw-8000--1000@10.8.201.108
Server: Audiocodes-Sip-Gateway/TrunkPack 1610/v.4.20.299.412
CSeq: 18153 INVITE
Content-Length: 0
îš„ F3 (10.8.201.10 >> 10.8.201.108 180 RINGING):
SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacsiJkDGd
From: <sip:8000@10.8.201.108>;tag=1c5354
To: <sip:1000@10.8.201.10>;tag=1c7345
Call-ID: 534366556655skKw-8000--1000@10.8.201.108
Server: Audiocodes-Sip-Gateway/TrunkPack 1610/v.4.20.299.412
CSeq: 18153 INVITE
Supported: 100rel,em
Content-Length: 0
Note: Phone ‘1000’ answers the call and then sends a 200 OK message to gateway
10.8.201.108.
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