Multiple External MOH Devices

[jtchapleau]

The customer wants to configure/attach multiple Music On Hold sources to CCM 7.1 with VG 224.  The Music On Hold source for discussion purposes is made by Interalia and is a 16 port XMU+ (all 16 configured for MoH).  The customer wants to continue to use this device to provide unique music and messaging to each of the 15 ACD queues that it operates.  Each one of the queues' plays different music and different messages based on time of day, day of week, etc...  Presently we can only find information that permits a single external audio source to be connected to CCM 7.1 via the 'MOH-USB-AUDIO' connector.  Is there another way of connecting each of these MoH ports from the XMU via the VG224 for instance so that they can continue to use their XMU+ for Music On Hold on there Cisco Call Manager 7.1?

[Jonathan Schulenberg]

I had to do this for a customer who has all UC on UCS (VMware-based) CUCM servers. To be honest, this is somewhat tricky to get going. There are also a lot of bugs in recent IOS versions on this. I have only done this on an ISR, not a VG224 so I cannot speak to what will/won't work there.

What you end up doing is configuring and FXS or E&M port (which may require an impedence transformer) to receive the analog audio and then trunk it to a dial-peer that is sending on a multicast address. This means you *must* use multicast MoH. The dial-peer is set to transmit on the same multicast group and port that the CUCM IPVMS would be transmitting on. Multicast-enabled MoH groups increment the group address by four. I disable igmp on the CUCM-facing VLAN to prevent the switch/router from having a second source of the multicast group. When CUCM sends a gateway/phone the group address/port to join for MoH, the only source is the router.

The configuration is similar to a LMR setup; however, you do not need an LMR license for this. http://www.cisco.com/en/US/docs/ios/12_3t/12_3t7/feature/guide/gtlmrip.html

voice class permanent 1

signal timing idle suppress-voice 1

signal timing oos timeout disabled

signal keepalive disabled

signal sequence oos no-action

!

interface Vif1

description Multicast Source Interface

ip address 10.101.0.173 255.255.255.252

ip pim sparse-mode

!

! Standard PIM, RP, and BSR configuration here.

!

! This is an E&M port configuration. FXO is different.

voice-port 0/3/0

auto-cut-through

voice-class permanent 1

operation 4-wire

signal immediate

input gain -6

no echo-cancel enable

no comfort-noise

timeouts call-disconnect 3

connection trunk *101991

!

ccm-manager music-on-hold bind Loopback0

!

dial-peer voice 9 voip

description Muzak MoH for Corporate

destination-pattern *101991

session protocol multicast

session target ipv4:239.101.12.5:16384

codec g711ulaw

no vad

Please rate helpful posts.

[b.eman]

As usual thanks everyone for the info.

Assuming I am connecting a standard stereo with Left/Right RCA connections to an E&M will I need this interface?

http://www.jkaudio.com/tap-1.htm

Jonathan, can you post the version and hardware specs you utilized? (IOS, ISR model, E&M card model)

Thanks

[dancarrick]

Sorry to drag this one out again, I'm attempting to get MoH working with UCS as per JS's suggestions, but I am not having any success.

I have configured the dial peer with the same multicast address:port that is configured on the CUCM.

Do I have to change the CUCM MoH Audio Source? - All I currently hear is the SampleAudioSource.

Thanks

Dan

[testeven · Accepted solution]

Hi,

I believe the limitation is one fixed audio source per server, but you can
have more if they are attached to multiple servers. You can add one fixed
audio source on your publisher and subscriber each. Not sure how many servers
you have in the cluster and how many audio sources you want to connect.
Then the selection of the audio source will depend on the MOH resource that comes
first as per your MRG on the held party.

Some more information on this is found in the SRND “Using Multiple Fixed (Live) Audio Sources” section:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/6x/moh.html#wp1043723

HTH!

Tere Stevens
-----
Cisco Systems
Unified Communications PDI Team
www.cisco.com/go/pdihelpdesk

[Jonathan Schulenberg]

I'm not sure that's viable. While each cluster server running IPVMS may have a live source via USB, it will be the same audio source (51) from a MRGL perspective. That means that a call arriving on an individual gateway will always hear the same audio regardless of the called number.

[Jaime Valencia · Accepted solution]

That works, all you need to do is work with the MRGLs so that you do not mix 2 MOH servers to get the expected result.

Each IPVMS will have their own source 51, and all phones are instructed to hear it.

The phone only knows 2 things, they will request source 51 and they will request it from MOH server X.

If you have 2 phones and 1 has MOH1 and the other MOH2 in their MRGL this will effectively cause each phone to get a different MOH fixed audio source.

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

[ma75]

Can we open this up again for 8.5 with VMware servers?

Yes we moved the USB MOH device to our subscriber, but alas no music. (No flasing light either,)

This is what our vendor had us do, originally we were told we had to put the USB on the PUB to get it to work. What should we do differently to get this going on 8.5 with a sub?