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

[Mark Holloway]

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] 
> Sent: Thursday, November 11, 2010 2:44 PM
> To: Bill Riley; 'Mark Holloway'
> Cc: 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
> D: 615-866-5729 | F: 615-866-5781 | www.presidio.com
> CCIE #25863, Voice
> 
>  
> From: Bill Riley [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
> 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] 
> Sent: Thursday, November 11, 2010 2:40 PM
> To: Bill Riley
> Cc: 'Buchanan, James'; 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] 
> Sent: Thursday, November 11, 2010 2:08 PM
> To: Bill Riley
> Cc: 'Buchanan, James'; 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] On Behalf Of Bill Riley
> Sent: Thursday, November 11, 2010 12:14 PM
> To: 'Buchanan, James'
> Cc: 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] 
> Sent: Thursday, November 11, 2010 12:09 PM
> To: Bill Riley
> Cc: 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
> D: 615-866-5729 | F: 615-866-5781 | www.presidio.com
> CCIE #25863, Voice
> 
>  
> From: Bill Riley [mailto:bill at hitechconnection.net] 
> Sent: Thursday, November 11, 2010 12:06 PM
> To: Buchanan, James
> Cc: cisco-voip at puck.nether.net
> Subject: RE: [cisco-voip] SIP trunk one way audio
>  
> Sip
>  
> From: Buchanan, James [mailto:jbuchanan at presidio.com] 
> Sent: Thursday, November 11, 2010 12:05 PM
> To: Bill Riley
> Cc: 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
> D: 615-866-5729 | F: 615-866-5781 | www.presidio.com
> CCIE #25863, Voice
> 
>  
> From: Bill Riley [mailto:bill at hitechconnection.net] 
> Sent: Thursday, November 11, 2010 11:52 AM
> To: Buchanan, James
> Cc: 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] 
> 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
> D: 615-866-5729 | F: 615-866-5781 | www.presidio.com
> CCIE #25863, Voice
> 
>  
> From: Bill Riley [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] 
> 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
> D: 615-866-5729 | F: 615-866-5781 | 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 Bill Riley
> Sent: Thursday, November 11, 2010 10:15 AM
> To: 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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>  
>  

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