[cisco-voip] How does Transfer work?

[Jason Aarons (US)]

To where are they transferring and what are codecs/regions. You have to be able to reproduce the problem or look thru logs like a needle in a haystack.

Transfer invokes a hold, then Transfers, check a ccm trace of a failed call. Either lack of transcoding resources possibly, lack of MTP resources, etc. Does RTMT shows any resource (MTP) issues?

Ideally you don't want calls using a MTP for every call.

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of James Buchanan
Sent: Wednesday, September 22, 2010 2:10 PM
To: Scott Voll; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] How does Transfer work?

Are you using a SIP trunk?

James Buchanan | Senior Network Engineer | South Region | Presidio Networked Solutions
12 Cadillac Dr, Suite 130, Brentwood, TN 37027 | jbuchanan at presidio.com<mailto:jbuchanan at ctiusa.com>
D: 615-866-5729 | F: 615-866-5781 | www.presidio.com<http://www.presidio.com> <http://www.presidio.com>
CCIE #25863, Voice

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Scott Voll
Sent: Wednesday, September 22, 2010 12:55 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] How does Transfer work?

Sounds really stupid, I know.

But how does a transfer work?

With a Conference, it uses the Conference resource.

We are having intermittent calls drop during a transfer and I'm trying to find an all in compassing reason.

originally I thought it was a soft phone issue.  but it looks to be happening in house too.

So even on a completely G711 call I'm getting calls drop.  Unfortunately I don't have Caller ID on the incoming calls so it's making it even harder to troubleshoot.

I can NOT reproduce on demand but it's happening frequently enough to try and get to the bottom of it.

TIA

Scott


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