I need your help on MOH for 3rd party SIP with cisco 2801 running CME version 8.6
Cisco 2801 as CME with 01 IP Phone 7941(SCCP), 9971(SIP) and Panasonic KX-HDV430 (3rd Party SIP)
MOH works well for 9971 (SIP) when press HOLD button:
-SCCP Phone 7941: MoH works well
-SIP Phone KX-HDV430: MoH work well
For Panasonic KX-HDV430 when press HOLD Button
-SCCP Phone 7941: MoH does not work, cant hear any music
-SIP Phone 9971: MoH does not work, cant hear any music.
Attached file are debug ccsip message when press hold button in cisco KX-HDV430.
We can see the header in the INVITE message from 9971 for the Hold.
This is not present in the case of the Panasonic phone. This could be why the CME doesn't think of it as a Hold operation.