[cisco-voip] MTP errors

[Ryan Ratliff]

You also get these errors when CM tries to invoke a transcoder where  
none is available.   The best thing to do is grab a CCM trace that  
covers the time of one of the errors and see what's going on.  If you  
need help analyzing feel free to unicast it to me.

-Ryan

On Sep 22, 2005, at 10:34 AM, Nick Kassel wrote:

We currently have 12 x H323 gateways, none of them have 'use mtp' option
in the configuration but there is an option for Media Termination Point
Required which is unticked in all of them.

-----Original Message-----
From: Walenta, Phil [mailto:philip.walenta at berbee.com]
Sent: Thursday, September 22, 2005 3:13 PM
To: Nick Kassel; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] MTP errors

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.





________________________________

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..