Technical Manual
U-SYS MRS6100 Media Resource Server
Chapter 5 MGCP and SIP
Huawei Technologies Proprietary
5-29
command that triggers this response. OK is a comment. It indicates that MG has
received and is executing the request.
IV. MRS6100 conference flow
Figure 5-10 shows the call flow of an MRS6100 three-party conference under the
control of one MGC. The flow is the simplest one. There are some more complex
flows that are alike in principle. To focus on the description of MGCP, we do not
introduce other flows here. In the following example, it is assumed that:
z The Endpoint1 ID is ms/cnf/1@mrs6100.com.
z The IP address of MCCU of MRS6100 is 182.20.50.101.
MRS6100MGC
CRCX
CRCX ACK
RQNT(pa)
NTFY
NTFY ACK
RQNT ACK
DLCX
DLCX ACK
(1)
(2)
(3)
CRCX ACK
CRCX ACK
CRCX
CRCX
(4)
(5)
(6)
Figure 5-10 MRS6100 conference flow
1) Event 1: MGC specifies MRS6100 to send a CRCX command to the Endpoint1,
requesting to establish a connection. The connection mode must be confrnce.
z CRCX encoding
CRCX 693585490 ms/cnf/1@mrs6100.com MGCP 1.0
C:a265
L:a:PCMA,P:20
M:confrnce
v=0
c=IN IP4 182.20.40.4
m=audio 30002 RTP/AVP 8
z CRCX ACK encoding
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