Announcement Call Flow Example - AudioCodes Mediant 1000 User Manual

10.2.3 Announcement Call Flow Example

The call flow, shown in the following figure, describes SIP messages exchanged between
the device (10.33.24.1) and a SIP client (10.33.2.40) requesting to play local
announcement #1 (10.8.25.17) using AudioCodes proprietary method.
1. SIP MESSAGE 1: 10.33.2.40:5060 -> 10.33.24.1:5060
INVITE sip:annc@10.33.24.1;play=http://10.3.0.2/hello.wav;repeat=2
SIP/2.0
Via: SIP/2.0/UDP 10.33.2.40;branch=z9hG4bKactXhKPQT
Max-Forwards: 70
From: <sip:103@10.33.2.40>;tag=1c2917829348
To: <sip:annc@10.33.24.1>
Call-ID: 1414622340oZZq@10.33.2.40
CSeq: 1 INVITE
Contact: <sip:103@10.33.2.40>
Supported: em,100rel,timer,replaces,path
Allow:REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,IN
FO,SUBSCRIBE,UPDATE
User-Agent: Audiocodes-Sip-Gateway-4.0 GA/v.4.0 GA
Content-Type: application/sdp
Content-Length: 215
v=0
o=AudiocodesGW 377662 728960 IN IP4 10.33.41.52
s=Phone-Call
c=IN IP4 10.33.41.52
t=0 0
m=audio 4030 RTP/AVP 4 0 8
a=rtpmap:4 g723/8000
a=rtpmap:0 pcmu/8000
a=rtpmap:8 pcma/8000
a=ptime:30
a=sendrecv
SIP User's Manual 492
Mediant 1000 & Mediant 600
Document #: LTRT-83303