[cisco-voip] MTP errors

Thu Sep 22 10:13:04 EDT 2005

This error would suggest that you are using MTP resources on some H.323 devices, and that all of them have been used.  Do you have H.323 gateways with "use MTP" checked in the configuration?

MTP's are used to "anchor" a call from an H.323 device that does not have the ability to support supplementary services such as hold or music on hold.  Without an MTP, a call from a device like this would drop the second someone would attempt a transfer, hold etc.

________________________________

From: cisco-voip-bounces at puck.nether.net on behalf of Nick Kassel
Sent: Thu 9/22/2005 9:08 AM
To: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] MTP errors

We were getting a lot of these errors previously and we managed to fix it by setting up the media resource group, but we seem to be getting them again now and I thought this could be because we have since added additional remote sites to our cluster.

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From: Leetun, Rob [mailto:rleetun at co.boulder.co.us] 
Sent: Thursday, September 22, 2005 2:49 PM
To: Nick Kassel
Subject: RE: [cisco-voip] MTP errors

We see this in our system too.  We have been told by Cisco TAC to disregard these errors.  It will be interesting to see how the others respond.

________________________________

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Nick Kassel
Sent: Thursday, September 22, 2005 7:44 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] MTP errors

We are getting a lot of MTP resource errors such as below, at present we have on Media resource group set up with Annunciator, Conference bridge, Media Termination Point and Music On Hold. We are currently adding this MR group into the devices of all our remote sites. 

The device pool on these Media Resources is set to London which is our HQ, should I be setting up these resources for each remote site selecting the correct device pool and then adding them into there own Media Resource group per site.

Event Type:       Error

Event Source:    Cisco CallManager

Event Category: None

Event ID:          3

Date:                9/22/2005

Time:                2:36:01 PM

User:                N/A

Computer:         

Description:

Error: MtpNoMoreResourcesAvailable - No more MTP resources available.

  App ID: Cisco CallManager

  Cluster ID:

  Node ID: 

Explanation: MTP resource is not available.

Recommended Action: Install additional MTP or transcoder resources..

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