Thanks, thats good info. We typically deploy ingate firewalls, but I suspect as 4.x matures we will be doing more and more SipXbridge.
Thanks, Matt >>> "Robert Joly" <[email protected]> 06/26/09 9:41 AM >>> > Just wondering how many people are using silence suppression > over a sip trunk? I had a sip trunk provider tell me today > that silence suppression is never a good idea for sip trunks. > Of course, he couldn't really tell me why with any detail. > > So, I'm just wondering what others are doing and if anyone > has had issues with silence suppression on. For most of our > deployments I leave it on as it really saves a ton of bandwidth. If there are firewalls along the media path, the interruption of media packet flow due to silence suppression can cause firewall pinholes to close on you resulting in one-way or no-way speech path issues. Having said that, the good news is that if you use sipXbridge, it has a built-in ability to periodically inject bogus RTP packets when it detects interruptions of media packet flows. This guarantees that firewall pinholes will remain opened even when silence suppression is used.
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