[cisco-voip] configure IOS MOH for remote site

Thu Jun 1 19:26:44 EDT 2006

Tone on hold tells you CCM is configured in such a way that it does not think MoH is deliverable to the end point, so you get tone.  If you get dead air, your network is not configured to deliver the multicast streams.  Codec will have nothing to do with the inclusion of a phone to the multicast group.  Unless of course the regions settings force the delivery of a g.729 multicast stream and the MoH server is not configured to support that natively.  You cannot transcode a multicast stream, so it must be sourced with the proper codec from the server.  To source a MoH multicast stream in g.729 format:  

Go into Service Parameter, select Cisco Voice IP Media Streaming App, scroll to the bottom and highlight both g.711 and g.729 codecs.  Do that with the control key and up date.

Verify CCM is handing out a multicast stream by using PerfMon as well.  With that tool, you can see exactly what CCM thinks it should do.  

Hope this helps,

Joe

________________________________

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Erik Erasmus (E)
Sent: Thursday, June 01, 2006 2:37 PM
To: Anthony Kouloglou; Goran Selthofer
Cc: cisco-voip at puck-nether.net
Subject: Re: [cisco-voip] configure IOS MOH for remote site

Hi Anthony

I need to do exactly the same but could not get it working immediately. I will go back to the lab again. I suspect it is because my MOH in multicast mode was not working at my HQ. It was in unicast mode. I did manage to get the MOH for CME fallback mode working and in fallback mode it is working but when the site s wan link is up I can not get MOH - just tone on hold. My branch is using g711 for voice in the branch and G729 across the wan to HQ. Apart from getting the MOH at HQ working - are there any special tricks - Do I need MOH at HQ in G711 or G729 mode or does it not matter - I.E a g729 region for my MOH to make sure the MOH signalling to fool the phones into listening to the stream at the branch etc or does it work irrespective of the codec at HQ.

Another question - the MOH sample file for a branch - is it a G711 or G729 ??

The one thing that I did was to get the branch going on MOH when in CME fallback mode (not SRST) is the command where you tie the MOH to a loopback. I had to also add the fast etehr IP address in the command - the same address as my cme skinny interface

erik

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From: cisco-voip-bounces at puck.nether.net on behalf of Anthony Kouloglou
Sent: Wed 2006-05-31 15:32
To: Goran Selthofer
Cc: cisco-voip at puck-nether.net
Subject: Re: [cisco-voip] configure IOS MOH for remote site

Hi Goran,
i made it work thanks to you and this link below

http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00802d1c31.html

but
when i change the .au file for a diferrent audio file, i can't stream it to the phones unless i reload the router. Is there a way to reset the music on hold server or something like that?

cheers
Akoul
Goran Selthofer wrote: 

anthony, this MoH is active always at multicast address...not only for srst.
that it why you should limit MoH server to one hop...because we are practicaly cheating it with moh file from flash...
let me explain:
when you put someone on hold (ip phone or external caller trough voice gateway), those devices expect to "hear" MOH on multicast address (practically, they became memebers fo multicast group).
So, instead receiveing direct moh from MoH server (remmember, we limited it on one hop), the devices will hear MOH file from router's flash which will be played on 239.1.1.1 port 16384 - exactly where they are listening... :)

believe me...it works fine for over 50 locations in my installation :)

cu,
goran

Anthony Kouloglou <akoul at dataways.gr> <mailto:akoul at dataways.gr>  wrote: 

Thanks goran but,
with this configuration, the MOH server is active only when srst is active. I want that the MOH server is always active and so:
assign this IOS MOH to a media resource group list that only the specific remote site uses.
Is this possible?

-akoul

Goran Selthofer wrote: 

ccm-manager music-on-hold
!
call-manager-fallback
ï¿½moh music-on-hold.au
ï¿½multicast moh 239.1.1.1 port 16384 route <IP address of loopback interface> <space> <IP address of some physical interface>
ï¿½
you should copy file "music-on-hold.au" to flash
email me if you need this file

this example is for g711 MoH stream to ip phones.
at the same time, you should configure one of the servers in cluster as MoH multicast server but limit it to one hop.

cu,
selt

Anthony Kouloglou <akoul at dataways.gr> <mailto:akoul at dataways.gr>  wrote: 

Hi all,
is there documentation on how to configure a IOS to act as MOH server 
(2851 series router). i just don't want the remote site to stream to the 
local users music from the wan.

central site: cluster with 2 ccm 4.1(3)sr3a
remote sites: 3 each with 2851 series router and srst.

Thanks
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