[cisco-voip] Multicast MOH on FXS while on SRST?

[ROZA, Ariel]

I know the general theory, but the FXS Ports get ToH while the IP Phones and the PSTN calls already receive the Multicast MOH from the SRST router. (I loaded a distinct audio file on the router, so it is NOT a Multicast MoH stream coming from Callmanager)

The IP Phones, and the Gateway and FXS ports share the same Device Pool / MRGL / Region / Location, so I this it sould be working fine, but it doesnt´.


 ARIEL ROZA
Service Delivery Engineer
 LOGICALIS
Peru 327 1° Piso - C.A.B.A. - Argentina - C1063ACH
Tel/Fax: +54 (11) 4344-0300
ariel.roza at la.logicalis.com
www.la.logicalis.com
www.logicalisnow.com
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From: Ryan Ratliff
Sent: Thu 15/10/2009 21:38
To: ROZA, Ariel
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Multicast MOH on FXS while on SRST?


If you are getting tone on hold then the MRGL/region  configuration on  
the FXS port in CCMAdmin is not set up to use the correct codec/MOH  
server that the SRST router is spoofing.

On the SRST router I believe it needs to be sourcing the multicast  
from a loopback interface for pots legs on the same router to receive  
MOH.

As long as you are getting tone on hold and not silence (or MOH) then  
the CUCM config is not correct.

-Ryan

On Oct 15, 2009, at 8:03 PM, ROZA, Ariel wrote:

Guys,

   Con anyone confirm if an FXS phone registered via SCCP with its  
SRST gateway can receive Multicast MOH? So far I am getting Tone-On- 
Hold, while the IP Phones and PSTN Calls get Multicast MOH. The  
original MRGL for the device on Callmanager has an Multicast MOH  
resource included.

Best Regards,

Ariel
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