I am trying to route an unsolicited SIP Notify for MWI from CUCM 7.1.5 via a Cube gateway running 15.1.4M7 to a CUCM running 10.0.1.
This is not working. SIP calls to phones and Unity Connection work fine over this link.
Also, I can send the MWI over either a SIP Trunk or an ICT Trunk direct between the two CUCM's by changing the MWI CSS to route over these trunks while the voice path is still through Cube.
However, I need the CUBE connectivity and I would like to pass the MWI through this connection. I can see the Notify arrive in the CUBE after the voice call terminates but it is not passed to the CUCM where the phone that needs MWI is registered.
CUC is connected to CUCM 7.1.5. CUCM 10 has some phones that need VM so the accounts are on CUC.
I found a previous similar case, https://supportforums.cisco.com/discussion/11073876/cisco-cube-exchange-2010-um, where it was implied this should work.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...