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Community Member

CM Express - MoH

Hi,

I have a Cisco 2811 running as CME. Things work well except MoH. I have configured "moh" command in telephony service but there's no moh when a call is put on hold.

When debug ephone moh, there're messages as follow:

"May 7 01:30:39.537: McastMoh is Unavailable due to low live feed signal and no valid moh file configured

May 7 01:30:43.197: No MOH entry for DN 1"

Could you explain the case and give me a workaround?

Thanks,

hoanghiep

9 REPLIES
Hall of Fame Super Gold

Re: CM Express - MoH

Which MoH file are you using ?

Community Member

Re: CM Express - MoH

Could you please post "show flash:" and your telephony-service config?

Bronze

Re: CM Express - MoH

Make sure the moh file is in flash.

Make sure you have the tftp-server flash:mohfile.wav where "mohfile.wav" is the exact name of the file you have in flash.

Make sure under telephony-service you have the command moh mohfile.wav where mohfile.wav is the exact name of the file you have in flash.

That is the base configuration you should have.

Please rate if this helps.

Community Member

Re: CM Express - MoH

A couple of items:

A music file must be in stored in the router's flash memory. This file should be in G.711 format. The file can be in .au or .wav file format, but the file format must contain 8-bit 8-kHz data; for example, ITU-T A-law or mu-law data format.

Once that is there, add the following commands.

config t

!

tftp-server flash:music-on-hold.wav

!

telephony-service

moh music-on-hold.wav

Community Member

Re: CM Express - MoH

I've done all the steps as you listed. The file used is music-on-hold.au, the file is available in flash. But the issue is still there! :(

Community Member

Re: CM Express - MoH

Send me a copy of the show run and the show flash. I'll throw in on my lab router and send it back.

Community Member

Re: CM Express - MoH

Send me a copy of the show run and the show flash. I'll throw in on my lab router and send it back.

Bronze

Re: CM Express - MoH

Is this from IP phone to IP phone or IP phone to gateway?

Community Member

Re: CM Express - MoH

I have taken the time to document this and feel it woul be beneficial to others

please rate if you find this helpful

Download Audacity ( google it)

open audacity

Change Project to 8000hz (lower left hand corner)

Go to edit and then preferences

Change Uncompressed export format to “ AU (Sun/Next 8:bit ULAW)”

Load audio file

Select a space where someone is not speaking

Go to effect and noise removal

Click get noise profile

Close effect

Select all

Choose effect and noise removal

Click remove noise

Select all

Choose effect and then normalize

Click ok

Select all

Choose effect and then compressor

Change threshold to -42db

Change ration to 10:1

Uncheck normalize

Click ok

Click file

Choose export as au.

Save as “ filename.au”

Upload file to router via tftp

specify the file in CME GUI

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