[cisco-voip] Configuring H.323 Calling Name Display

[James.Brown at barclayswealth.com]

Hi Mike,

Some remote PBXs use a SETUP message with an enclosed Facility Information element. Buffering refers to those who instead send a completely separate FACILITY message containing the name information to display. The gateway would have to buffer (in Cisco parlance) for a few milliseconds to collate the SETUP and the calling name information. Your choice depends on what your provider's equipment sends to you.

I don't have personal experience of using this command, but I would lean towards applying it globally at the "voice service voip" level if you know you want to use it on every T1/E1 circuit. Otherwise, I presume the voice class would need to be associated with your incoming pots dial-peer, but this doesn't seem to be documented.

Hope this helps

James.

________________________________
From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Mike King
Sent: 07 March 2011 15:57
To: Cisco VoIPoE List
Subject: [cisco-voip] Configuring H.323 Calling Name Display

I'm looking to configure H323 Calling Name Display..

http://www.cisco.com/en/US/docs/ios/voice/cube/configuration/guide/vb-gw-cm.html#wp1324664

It provides 4 ways to configure this:

Voice Class Level - With Buffering
Voice Class Level - Without Buffering
Voice Service Level - With Buffering
Voice Service Level - Without Buffering

I have a 2921, with a single PRI providing service to this branch office (Also providing SRST)

My question, what's the difference between buffering and without buffering?
also,
Would I have to configure it at both the Voice Class and Service level, or just one of the two?  If it's just the one, I'm assuming the Voice Service level would make the most sense for a single T1 type environment.

Mike

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