CUCM V10.5 MOH Audio sources

[Lin Zhu]

Hi All,

I intend to create MoH for an remote office (main office already  has MoH), here I am experiencing a question- what is logic to select audio source?

- if on phone device page, put 'none' in  User Hold MOH Audio Source, then it should go check Device Pool (MRGL), is it correct?

- MRGL in Device Pool has MRG-> MOH_4,  then how this music on hold server select which audio source? there are 3 audio sources in Media Resources-> music onhold audio sources.

thank.s

[R0g22]

If you select none, no MOH is played because cucm does not know what audio source to use.
The user hold MOH determines the audio file that will be streamed when the holder puts a call on hold, and the holdee's configured MRGL indicates the resource or server from which the holdee will receive the MoH stream.

Check the SRND. It details the process quite well.

[Lin Zhu]

thanks Nipun,

in my production, line\device level it does select 'none', and holdee is able to get music, I guess there is a clusterwise default setup somewhere to pick up a audio sources.

and I got 3 audio sources there, only third sources is selected every time if put none on phone line\device level. these 3 sources has any priority?

thanks again.

[R0g22]

Yes there is. Priority in a top down order -

1. Directory or line setting (not able to devices like gateways since they don't have a line)
2. Device setting
3. Common Device Configuration setting
4. Cluster-wide default setting

The above is for holder. For holdee, the MRGL selection goes like -

1. Device setting
2. Device pool setting
3. System default MoH resources (these are the resources which are not part of a MRG/MRGL).

[Jaime Valencia]

Cisco Unified Communications Manager implements four levels of prioritized audio source ID selection with level four as highest priority and level one as lowest priority.

–The system selects audio source IDs at level four, which is directory/line-based, if defined. (Devices with no line definition, such as gateways, do not have this level.)

–If no audio source ID is defined in level four, the system searches any selected audio source IDs in level three, which is device based.

–If no level four nor level three audio source IDs are selected, the system selects audio source IDs that are defined in level two, which is Common Device Configuration-based.

–If all higher levels have no audio source IDs selected, the system searches level one for audio source IDs, which are clusterwide parameters.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_6_1/ccmfeat/fsgd-861-cm/fsmoh.html

It also explains the MRG selection, might want to read through the whole link