[cisco-voip] [cisco-VoIP] SIP trunk one way audio

[Dennis Heim]

Check you sip debugs and see where it is trying to send the audio to and make sure your cube has appropriate routes.

Dennis Heim
Network Voice Engineer
CDW  Advanced Technology Services
11711 N. Meridian Street, Suite 225
Carmel, IN  46032

317.569.4255 Office/Home Office
317.569.4201 Fax
317.694.6070 Cell
dennis.heim at cdw.com<mailto:dennis.heim at cdw.com>
cdw.com/content/solutions/unified-communications/<http://www.cdw.com/content/solutions/unified-communications/>

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Nick Matthews
Sent: Thursday, November 11, 2010 8:08 PM
To: Mark Holloway
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] [cisco-VoIP] SIP trunk one way audio

I would make sure you're on the latest greatest code (15.1.T?) and you have this command:

voice service voip
midcall-signalling passthru

(This is mandatory for sip-sip cubes to use supplementary features.  Any time you have sip-sip I would put this on.)

-nick
On Thu, Nov 11, 2010 at 4:03 PM, Mark Holloway <mh at markholloway.com<mailto:mh at markholloway.com>> wrote:
What version of IOS? It almost sounds like an IOS bug. Also paste your voice service voip and dial peers.


On Nov 11, 2010, at 1:53 PM, Bill Riley wrote:


SCCP

From: Buchanan, James [mailto:jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>]
Sent: Thursday, November 11, 2010 2:44 PM
To: Bill Riley; 'Mark Holloway'
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] [cisco-VoIP] SIP trunk one way audio

Are your IP phones running SCCP or SIP?

James Buchanan | Technology Manager, UC | 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/>
CCIE #25863, Voice

From: Bill Riley [mailto:bill at hitechconnection.net<mailto:bill at hitechconnection.net>]
Sent: Thursday, November 11, 2010 2:40 PM
To: 'Mark Holloway'
Cc: Buchanan, James; cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] [cisco-VoIP] SIP trunk one way audio

Same LAN, No, No, and NO.

From: Mark Holloway [mailto:mh at markholloway.com<mailto:mh at markholloway.com>]
Sent: Thursday, November 11, 2010 2:40 PM
To: Bill Riley
Cc: 'Buchanan, James'; cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] [cisco-VoIP] SIP trunk one way audio

On the same LAN or does it traverse another router to reach the other phone?  Is there any NAT, access lists, or firewalls between the two phones?


On Nov 11, 2010, at 1:14 PM, Bill Riley wrote:

Another internal extension.

From: Mark Holloway [mailto:mh at markholloway.com<mailto:mh at markholloway.com>]
Sent: Thursday, November 11, 2010 2:08 PM
To: Bill Riley
Cc: 'Buchanan, James'; cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] [cisco-VoIP] SIP trunk one way audio

Are you forwarding back to the PSTN or to another internal extension?


On Nov 11, 2010, at 11:48 AM, Bill Riley wrote:

Anyone else?

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Bill Riley
Sent: Thursday, November 11, 2010 12:14 PM
To: 'Buchanan, James'
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] [cisco-VoIP] SIP trunk one way audio

Whatever the default setting. When I go into Voice-services-voip to configure it globally all I have is media forking.

From: Buchanan, James [mailto:jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>]
Sent: Thursday, November 11, 2010 12:09 PM
To: Bill Riley
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] SIP trunk one way audio

Are you using media flow-around or flow-through?

James Buchanan | Technology Manager, UC | 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/>
CCIE #25863, Voice

From: Bill Riley [mailto:bill at hitechconnection.net<mailto:bill at hitechconnection.net>]
Sent: Thursday, November 11, 2010 12:06 PM
To: Buchanan, James
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] SIP trunk one way audio

Sip

From: Buchanan, James [mailto:jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>]
Sent: Thursday, November 11, 2010 12:05 PM
To: Bill Riley
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] SIP trunk one way audio

Is your trunk SIP or H323 into UCM?

James Buchanan | Technology Manager, UC | 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/>
CCIE #25863, Voice

From: Bill Riley [mailto:bill at hitechconnection.net<mailto:bill at hitechconnection.net>]
Sent: Thursday, November 11, 2010 11:52 AM
To: Buchanan, James
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] SIP trunk one way audio

Well according to TAC if the call is sip to sip I shouldn't need the MTP at all.

I thought MTP required check box allocated the MTP if it needed one or not and leaving it unchecked  allocated the MTP if it needed to use one.

From: Buchanan, James [mailto:jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>]
Sent: Thursday, November 11, 2010 11:49 AM
To: Bill Riley
Subject: RE: [cisco-voip] SIP trunk one way audio

Because it won't invoke the MTP without it.

James Buchanan | Technology Manager, UC | 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/>
CCIE #25863, Voice

From: Bill Riley [mailto:bill at hitechconnection.net<mailto:bill at hitechconnection.net>]
Sent: Thursday, November 11, 2010 11:19 AM
To: Buchanan, James
Subject: RE: [cisco-voip] SIP trunk one way audio

No I don't have "MTP Required" Checked. The MTP's are set to only use G.711. I don't see why I need  to have MTP Required on this trunk.

From: Buchanan, James [mailto:jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>]
Sent: Thursday, November 11, 2010 11:12 AM
To: Bill Riley
Subject: RE: [cisco-voip] SIP trunk one way audio

Dumb question-I assume you have "MTP Required" checked, are set to use only G711 to the MTP, and reset the SIP trunk after setting it? If you require G729, you will need to setup an IOS MTP. These do not use DSPs, but will allow other codecs besides G711.

James Buchanan | Technology Manager, UC | 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/>
CCIE #25863, Voice

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Bill Riley
Sent: Thursday, November 11, 2010 10:15 AM
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: [cisco-voip] SIP trunk one way audio

I have a new SIP trunk terminating in a 2921 CUBE bundle. When I call in from the Trunk directly to an IP phone it works correctly. If I call from the trunk to IP phone and the IP phone transfers the call without waiting for the remote party to answer I get one way audio. From reading this looks like and MTP issue but I have an MTP set in the MRGL for the trunk.
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