Media Processing Subsystem - Huawei U-SYS MRS6100 Technical Manual

Technical Manual
U-SYS MRS6100 Media Resource Server
III. Transport layer processing
The call processing subsystem processes the transport layer protocols like the UDP
and the TCP. These protocols bear the call control protocols like HTTP at the upper
layer over the IP network.
IV. Call control protocol processing
The MRS6100 supports the following call control protocols:
MGCP
The MRS6100 processes the MGCP as follows:
1) Receive the call requests from the SoftSwitches.
2) Connect with the MGCP and the IAD or the AMG terminals.
3) Provide the announcement digit collecting or recording services for the terminals
based on the call requests sent by the SoftSwitches.
SIP
1) Receive the call requests from the AS.
2) Connect with the SIP terminal.
Provide the announcement digit collecting or recording services for the SIP
terminal based on the call requests sent by the AS.
VXML
The MRS6100 process the VXML protocol as follows:
1) Receive the call requests from the AS.
2) Connect with the terminal.
3) Provide the announcement digit collecting or recording services for the terminals
based on the call requests sent by the AS.

3.3 Media Processing Subsystem

This subsystem performs the following tasks:
Manage the media resources of the MRS6100.
Control and process the service flows.
RTP media stream transcoding.
Provide the media processing resources for the external SoftSwitches or AS.
Figure 3-3 shows the software structure of the media processing subsystem.
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3-3
Chapter 3 Software Architecture