Huawei U-SYS MRS6100 Technical Manual page 80

Technical Manual
U-SYS MRS6100 Media Resource Server
terminal
Figure 5-14 Successful call flow
Event 1: AS sends an INVITE request to MRS6100. The request contains SDP-1, the
session attribute of the remote caller SIP entity.
IINVITE sip:annc.BAU.pa%28an%3dfile%3a//welcome4%29@182.20.60.1 SIP/2.0
From: <sip:1@182.20.62.2>;tag=8000
To: sip:annc.BAU.pa%28an%3dfile%3a//welcome4%29@182.20.60.1
Contact: sip:182.20.62.2
Call-ID: 4000@182.20.62.2
CSeq: 10 INVITE
SIP
INVITE
100 Trying
180 Ringing
200 OK
ACK
BYE
200 OK
Huawei Technologies Proprietary
AS
INVITE
100 Trying
180 Ringing
200 OK
ACK
RTP
......
Cancel
reINVITE
annoucem
ent
200 OK
ACK
Repuest
reINVITE
annoucement
200 OK
ACK
INFO
200 OK
......
BYE
200 OK
5-55
Chapter 5 MGCP and SIP
MRS6100