[cisco-voip] TDM to IP VG's SIP, H323, MGCP

[Jason Aarons (AM)]

I would agree SIP where possible end to end creates the least amount of issues.  You might have some VG224s that want Shared Lines with SIP Phones requiring MGCP on the VG224.

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Kenneth Hayes
Sent: Friday, July 26, 2013 3:14 PM
To: Eric Pedersen
Cc: cisco-voip at puck.nether.net VOIP
Subject: Re: [cisco-voip] TDM to IP VG's SIP, H323, MGCP


I agree. SIP between your UC apps, and gateways is what I recommend. In some cases you might need to use SCCP protocol but for the major stuff SIP is what I recommend.

Sent from my iPad

On Jul 26, 2013, at 9:22 AM, Eric Pedersen <PedersenE at bennettjones.com<mailto:PedersenE at bennettjones.com>> wrote:
SIP works very well in CM 9.1. I don't know of any reason to use H.323 between CM and PRI gateways anymore.  MGCP still provides the simplest configuration but you lose all the PRI calls if the connection between the gateway and the CM it's registered to drops for some reason.

I suggest using the same protocol for all your gateways to reduce the likelihood of problems with things like DTMF relay and faxes.

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Candese Perez
Sent: 25 July 2013 8:07 AM
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net> VOIP
Subject: [cisco-voip] TDM to IP VG's SIP, H323, MGCP

Hello All,
I am working on a new CUCM 9.1 deployment with several branch offices using PRI's.
Reading through the SRND and a few messages on this board, I am still not sure which protocol to use for these gateways.
I know SIP is really prevalent now, and is much easier to troubleshoot, but not sure if there are any issues in terms of features.

Additionally, this deployment will involve several VG 224's for fax, and analog IVR components.
Does anyone have any suggestions either way SIP, H323, or MGCP or particular features that work better/worse using a particular protocol?
Thanks!


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