Technical Manual
U-SYS MRS6100 Media Resource Server Chapter 5 MGCP and SIP
Huawei Technologies Proprietary
5-8
The dial plan described above results in the following digit map:
(0T| 00T|[1-7]xxx|8xxxxxxx|xxxxxxx#|*xx|91xxxxxxxxxx|9011x.T)
5.2.3 Protocol Stack
MGCP is a both a definition of commands and a definition of signaling. By using
MGCP commands, media gateway controller (MGC) equipment can control
MRS6100. The commands and signals of MGCP are defined as IP packets, which
allow MGCP to be independent of the lower-layer bearer system. Through MGCP, a
call agent can run on a universal network computer platform.
Figure 5-4 shows the
structure of the MGCP protocol stack.
MAC
IP
UDP
MGCP
Figure 5-4 MGCP protocol stack
MGCP messages are transmitted over UDP/IP. The transport layer protocol is UDP
and the network layer protocol is IP.
5.2.4 Message Type
I. Command
Table 5-4 gives the names and corresponding meanings of MGCP commands, which
include connection processing and endpoint processing commands. There are nine
commands defined in this protocol.
Table 5-4 MGCP commands
Serial
No.
Command
name
Code Description
1
EndpointConfig
uration
EPCF
From MGC to MRS, used to show the
encoding feature of an endpoint circuit in the
gateway.
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