Technical Manual
U-SYS MRS6100 Media Resource Server
Chapter 5 MGCP and SIP
Huawei Technologies Proprietary
5-19
DLCX (Call-ID,EndpointId,ConnectionId,[Encapsulated
NotificationRequest,][Encapsulated EndpointConfiguration])
DeleteConnection from the VoIP gateway:
DLCX (Call-ID,EndpointId,ConnectionId,Reason-code,Connection-parameters)
DeleteConnection from the call agent to delete multiple connections:
DLCX (Call-ID,EndpointId)
z AuditEndpoint
AUEP (EndpointId,RequestedInfo)
z AuditConnection
AUCX (EndpointId,ConnectionId,RequestedInfo)
z RestartInProgress
RSIP (EndpointId,RestartMethod,[RestartDelay,][Reason-code])
4) Command example
The following is an MGCP command encoding example.
CRCX 693585490 ms/cnf/1@mrs6100 MGCP 1.0
C:a265
L:a:PCMA,P:20
M:sendrecv
v=0
c=IN IP4 182.20.40.4
m=audio 30002 RTP/AVP 8
The 1
st
line: The CreateConnection command. The transaction identifier is
693585490 and it is used to correlate this command with the responses that it triggers.
It indicates to create a connection between MGC and the first port of the MRS6100
whose domain name is mrs6100 and the interface name is ms/cnf. The protocol
version of MGCP is 1.0.
The 2
nd
line: The call identifier is a265.
The 3
rd
line: The local connection options. The call agent recommends to the MRS
that the compression algorithm is PCMA and the encapsulation delay is 20
milliseconds.
The 4
th
line: The connection mode is sendrecv, that is, both sending and receiving
packets are allowed.
The 5
th
line: Null, indicating what is preceded is an SDP session description.
The 6
th
line: The SDP protocol version is 0. It is the local connection descriptor at this
time.
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