[cisco-voip] Music On Hold Problem

[Chris Ward]

I should add:

When doing the troubleshooting, start on the router closest to CUCM first
and work towards the GW.

Chris Ward 

> From: Chris Ward <chrward at cisco.com>
> Date: Mon, 08 Dec 2008 12:37:28 -0500
> To: Timothy Smith <timotsmith at gmail.com>
> Cc: <cisco-voip at puck.nether.net>
> Subject: Re: [cisco-voip] Music On Hold Problem
> 
> Hi Wilson,
> 
> I see you have both dial-peers and some MGCP commands on the GW. Is this
> H323 or MGCP?
> 
> I have seen some talk in the thread about the IP PIM commands already but
> let me just run through the steps we normally use to fix 90% of these
> issues:
> 
> 1) Ensure the hop count in CCM for the MOH server is enough to cross all the
> L3 barriers between the CUCM and this GW.
> 
> 2) Ensure you have "ip multicast routing" enabled on all the routers this
> MMOH stream is going to cross
> 
> 3) Ensure you have "ip pim sparse-dense-mode" on the ingress and egress
> interfaces this stream is going to cross going through the L3 hops.
> 
> For troubleshooting, call in from the PSTN and have the IP phone place the
> call on hold. Then, use the "show ip mroute" command to see the if the
> multicast stream is being properly routed. The output will include the
> source and destination IP of the multicast stream, so ensure you are looking
> at the entry with your CUCM's IP and the proper multicast dest address. Some
> entries will not have any source IP info, these are not your MMOH stream.
> The command also shows the interfaces that the stream is being received and
> sent out on so if you see an ingress interface and no egress, that router is
> most likely the issue.
> 
> HTH
> 
> Chris Ward 
> 
>> From: Timothy Smith <timotsmith at gmail.com>
>> Date: Mon, 8 Dec 2008 20:18:26 +0300
>> To: Chris Ward <chrward at cisco.com>
>> Cc: <cisco-voip at puck.nether.net>
>> Subject: Re: [cisco-voip] Music On Hold Problem
>> 
>> Hi Chris,
>> 
>> Thanks for your reply. This is not a dupe.
>> 
>> The previous emails have helped me overcome the tone on hold only for
>> some internal calls (calls within the call manager to local
>> extensions). My main problem now is PSTN Calls. they hear total
>> silence! Attached is my current config.
>> 
>> Please advise.
>> 
>> Thanks,
>> Wilson
>> 
>> On Mon, Dec 8, 2008 at 8:10 PM, Chris Ward <chrward at cisco.com> wrote:
>>> Hi Timothy,
>>> 
>>> Troubleshooting MOH can get a little involved, but your description provides
>>> a good clue. When you say you are receiving Tone on Hold rather than MOH,
>>> that means that CUCM is failing to even allocate a MOH resource. This could
>>> be a MRGL or a region/codec mismatch.
>>> 
>>> If you were receiving silence, that would mean the MOH server was allocated,
>>> but the stream is either blank or not reaching the destination.
>>> 
>>> Also, when allocating an MOH stream, there are two big pieces, the source
>>> file and the MOH server. Here is how they are chosen. The device initiating
>>> the hold selects the Audio Source ID and the device that is being held uses
>>> its MRGL to find an MOH server to use for the selected Audio Source ID.
>>> 
>>> I saw a lot of other emails on this subject so I apologize if this is a
>>> dupe.
>>> 
>>> Chris Ward
>>> 
>>>> From: Timothy Smith <timotsmith at gmail.com>
>>>> Date: Sat, 6 Dec 2008 20:32:16 +0300
>>>> To: <cisco-voip at puck.nether.net>
>>>> Subject: [cisco-voip] Music On Hold Problem
>>>> 
>>>> Hi,
>>>> 
>>>> I have a IPT setup comprising of a cisco call manager 5.1 and using a
>>>> cisco 2821 router as an h323 gateway to the PSTN over an E1 line.
>>>> Everything works well save for Music on hold! I have Tone on hold
>>>> instead both internal and external calls. Could someone please point
>>>> me any directions or  some tutorial/guides that can help me overcome
>>>> this problem?
>>>> 
>>>> I have tried whatever I can but no success.  Attached are some of the
>>>> screen shots on what I think is important for MOH to work.
>>>> 
>>>> Thanks!
>>>> TS
>>>> _______________________________________________
>>>> cisco-voip mailing list
>>>> cisco-voip at puck.nether.net
>>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>> 
>>> 
> 
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