02-21-2013 10:37 PM - edited 03-16-2019 03:52 PM
Hi,
Environment is CUCM - H323 - CUBE - ISP
Inbound & outbound calls all work fine however MOH does not work. Have checked that MOH is streaming from CUCM and is Unicast. Have checked all codecs in the Service Parameters for MOH to include G729 and restarted Streaming Service.
Attached is my config (cutdown), debug of CCSIp when triggering MOH and screenshot from CUCM of MOH service parameters.
Any ideas appreciated!
Cheers
Pieter
Solved! Go to Solution.
03-04-2013 03:40 PM
Thanks Aokanlawon,
I did enable debugging for the IPVMS service but it did not write to the log file. I tried several times including restarting the service. I saw the errors but they are referring to files that are not in the MOH list. I have no idea where these come from. Look sto be internal.
The MOH works fine for internal users and uses the same source file for the MOH for users on the PSTN. No 2 is the MOH file we are after.
Regards
Pieter
03-04-2013 10:19 PM
Thanks for the update. I have done further research and this is definitely a problem on CUCM side...
The two stages for playing MOH on h323 call
1. CUCM sends a closelogical channel to the existing call
2. cucm sends a open logical channel ACK with the ip address of CUCM-MOH server and port (usually 4000)
In this case CUCM is sending "empty capabiilities"
H245ASN - TtPid=(23601) -Outgoing #198669 -value MultimediaSystemControlMessage ::= response : openLogicalChannelAck :
{
forwardLogicalChannelNumber 1,
forwardMultiplexAckParameters h2250LogicalChannelAckParameters :
{
sessionID 1,
mediaChannel unicastAddress : iPAddress :
{
network '00000000'H,
tsapIdentifier 0
},
mediaControlChannel unicastAddress : iPAddress :
{
network '00000000'H,
tsapIdentifier 1
I see a bug that is for old IOS and explains this behaviour (although you are not usin POTS for PSTN)
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"opportunity is a haughty goddess who waste no time with those who are unprepared"
03-06-2013 01:48 AM
Thank you again! I will go onsite tomorrow and try some options. I will start with option one and then move to changing the trunk to SIP. The bug matches the symptoms exactly except that we are running ver 15.1. The symptom does not happen with the calls across the pots dial peers, so I will leave the upgrade as a last option.
Will keep you updated.
Regards
Pieter
03-08-2013 09:57 PM
Almost there!
I decided to do the SIP trunk fro mthe Call Manager to the CUBE as you recomended. If I dial from internal to external, MOH works however, not in the opposite direction. Dialing from external to internal does not have MOH working. I did add the MTP resource from the IOS to the MRGL of the SIP trunk and selected "use MTP"
Send some debugs to your email account if you have a moment? Would be appreciated
Regards
Pieter
03-09-2013 01:54 PM
Pieter,
I have been travelling, hence the reason for my late response..I was looking at your logs at brussels airport
The failing call is still doing h323 to sip. The call is matching dial-peer 20 voip..which is a h323 dial-peer. You can just remove this dial-peer and leave only dial-peer 21..and it should be fine.
Have you tried MOH with sip to sip configuration without enabling MTP. Please try that and see if it works and let us see if we can remove MTP..Send me the logs once you remove the MTP. You can send the logs directly here (the forum attachment is working now)
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"opportunity is a haughty goddess who waste no time with those who are unprepared"
03-11-2013 06:50 PM
Thank you,
It is working now. The challenge was getting this going with the existing h323 environment for testing. I really appreciate your input. This is working using the MTP (which I will play around with to see if it makes any difference). Couldn't remove the dial peer as still required to translate patterns.
In short incase others read this, the golden rule I learned when using SIP trunks to ISP: Avoid CUCM - H323 - Cube - SIP - ISP. It should be CUCM-SIP-CUBE-SIP-ISP. It just saves a ton of troubleshooting (no matter what the customer wants).
Cheers and thanks for making the support community a place collaborate!
Pieter
03-12-2013 04:06 AM
Pieter,
I am glad I could help. The support forum is the best..we all make it what it is..Make sure you come back..
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"opportunity is a haughty goddess who waste no time with those who are unprepared"
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