20 Overview | Nortel Networks Confidential |
|
|
The RTP Media Portal handles Network Hiding for the media stream. For information on the RTP Media Portal, refer to the MCP RTP Media Portal Basics document.
Note: The SIP Application Module cannot map SDP information without an RTP Media Portal. It only performs address mapping for SIP header fields. Therefore, SDP passes through untouched. If the server must map SDP address information, then you need an RTP Media Portal.
The SIP Application Module is configured to use an RTP Media Portal to originate and terminate media streams (RTP/RTCP). The
SIP Application Module uses extended Media Gateway Control Protocol (MGCP+) to allocate and release resources on the RTP Media Portal for each session as needed.
Enterprise Clients
The SIP Application software uses the RTP Media Portal to hide sensitive IP address information about SIP clients behind a firewall in an Enterprise network. The exception to this occurs when the originator and terminator of the request are both part of the same network. This status is determined by checking the domains in the From header and
Copyright © 2003, Nortel Networks |
