UC500 moh issue

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Mar 10th, 2008
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Hi, I have a problem with music on hold on my UC500. I use the default file music-on-hold.au but I listen only noise. The same file on CME work correctly.

There's a way to debug this problem?

Thanks Enrico

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paolo bevilacqua Mon, 03/10/2008 - 11:55
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Which exact IOS are you using? Also try reloading the router.

epasqualotto Mon, 03/10/2008 - 13:02
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The IOS version is 12.4(11)XW6 but also with 12.4(11)XW5 I have the same problem.

Seems that UC500 cannot reproduce the music, like play the first 1-2 second forever.

I have checked the CPU/Memory/Bandwidth utilization but all are ok.


paolo bevilacqua Mon, 03/10/2008 - 13:06
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Is it possible that the file got corrupted? Have you tried another one ?

epasqualotto Mon, 03/10/2008 - 13:35
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Yes yes, I try also with the CUE sound file but the "noise-on-hold" are the same.

paolo bevilacqua Mon, 03/10/2008 - 13:41
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I've never heard of CME having a problem with MOH. Send relevant config, as it is strange.

epasqualotto Mon, 03/10/2008 - 13:56
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no auto-reg-ephone

max-ephones 14

max-dn 56

ip source-address port 2000

auto assign 10 to 19

auto assign 5 to 8 type anl

calling-number initiator

service phone videoCapability 1

timeouts interdigit 2

system message Netspin

url information

url directories

url services

url authentication

time-zone 23

time-format 24

date-format dd-mm-yy

voicemail 2100

max-conferences 8 gain -6

call-forward pattern .T

call-forward system redirecting-expanded

moh en_bacd_music_on_hold.au



transfer-system full-consult dss

transfer-pattern .T

transfer-pattern 0.T

secondary-dialtone 0

create cnf-files version-stamp 7960 Mar 10 2008 21:03:07


This is my conf, I don't have see similar problem too.

If you want to listen I can send you our pstn number.


Fair_Serg Wed, 03/19/2008 - 04:33
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ip source-address and multicast moh must have different ip and ports

ip source-address port 2000

multicast moh port 5000

mattcalderon Wed, 03/19/2008 - 05:23
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AFter looking at the config I dont see the multicast commands.

Summary of MOH.

1. enable

2. configure terminal

3. telephony-service

4. moh filename

5. multicast moh ip-address port port-number [route ip-address-list]

6. exit

7. ephone phone-tag

8. multicast-moh

9. end

From this guide:


Note: This command is required to use MOH for internal calls and it must be configured after MOH is enabled with the moh command.

epasqualotto Thu, 03/27/2008 - 07:20
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My MOH issue also is on ISDN call via BRI. I think this is a moh generation problem from au/wav


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