[cisco-voip] Device > Gateway > H323 > Checking Media Termination Point Required and Enable Inbound FastStart

[Nicholas Samios]

CUCM's 'inbuilt' MTPs (IP Voice Media Streaming App) only support G711a <-> G711u transcoding.
If you need to transcode G729, you'll need a hardware transcoder.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/6x/media.html#wp1058085

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jason Aarons (US)
Sent: Thursday, July 08, 2010 12:00 PM
To: cisco-voip (cisco-voip at puck.nether.net)
Subject: [cisco-voip] Device > Gateway > H323 > Checking Media Termination Point Required and Enable Inbound FastStart

I'm not a fan of forcing every call to "Use MTP Required" on Device > Gateway > H323 and Inbound Fast Start (which also forces MTP)

Anyone disagree with me that best practice says you don't use G729 as default codec and have CallManager doing Software MTP transcoding from G729 to G711 and vice

If you want transcoding you really should do it in hardware, eh?

I'm trying to figure out if someone knew what they were doing and wanted to force software transcoding at this customer...or didn't really know what they were doing.


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