3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual page 58

Content-Type: application/sdp
Content-Length: 208
v=0
s=Phone-Call
t=0 0
o=3ComGW 87943 43401 IN IP4 10.8.201.158
c=IN IP4 10.8.201.158
m=audio 6000 RTP/AVP 8 96
a=rtpmap:8 pcma/8000
a=rtpmap:96 telephone-event/8000
a=fmtp:96 0-15
a=ptime:20
F2 10.8.201.161 ==> 10.8.201.158
SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.8.201.158;branch=z9hG4bKacolwbzYF
From: <sip:2000@10.8.201.158>;tag=1c3535
To: <sip:6000@10.8.201.161>;tag=1c29715
Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158
CSeq: 20214 INVITE
Supported: 100rel,em
Content-Length: 0
Phone 2000 answers the call, and sends 200 OK message to Gateway 10.8.201.158.
2
F3 10.8.201.161 ==> 10.8.201.158
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.8.201.158;branch=z9hG4bKacolwbzYF
From: <sip:2000@10.8.201.158>;tag=1c3535
To: <sip:6000@10.8.201.161>;tag=1c29715
Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158
CSeq: 20214 INVITE
Contact: <sip:6000@10.8.201.161;user=phone>
Supported: 100rel,em
Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO
Content-Type: application/sdp
Content-Length: 208
v=0
s=Phone-Call
t=0 0
o=3ComGW 30762 37542 IN IP4 10.8.201.161
c=IN IP4 10.8.201.161
m=audio 4040 RTP/AVP 8 96
a=rtpmap:8 pcma/8000
a=ptime:20
a=rtpmap:96 telephone-event/8000
a=fmtp:96 0-15
F4 10.8.201.158 ==> 10.8.201.161
ACK sip:6000@10.8.201.161;user=phone;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.158;branch=z9hG4bKachoWSQxD
From: <sip:2000@10.8.201.158>;tag=1c3535
To: <sip:6000@10.8.201.161>;tag=1c29715
Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158
CSeq: 20214 ACK
Supported: 100rel,em
Content-Length: 0
Phone 6000 goes onhook, Gateway 10.8.201.161 sends BYE to Gateway 10.8.201.158.
3
F5 10.8.201.161 ==> 10.8.201.158
BYE sip:2000@10.8.201.158;user=phone;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.161;branch=z9hG4bKacLBzZgmA
From: <sip:6000@10.8.201.161>;tag=1c29715
To: <sip:2000@10.8.201.158>;tag=1c3535
Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158
CSeq: 34541 BYE
58
180 RINGING
200 OK
ACK
BYE
3Com VCX V7111 VoIP SIP Gateways User Manual