Intercluster Trunk ICT call between 6.x cluster and 9.x cluster - Hold, Transfer, etc do not work

[aarondailey]

Example:  Call comes in from PSTN to gateway registered to 6.x cluster.  IP PHone answers the call, transfers call over intercluster trunk (ICT) to IP Phone registered to 9.x cluster.  IP Phone on 9.x cluster cannot invoke the call hold, or call transfer or any softkey, etc features for that active call.

[aarondailey]

Also note, that MTP Required check on the ICT Trunks does not alleviate the issue.  Thanks!

[Ayodeji Okanlawon]

Aaron,

Where are you with this issue? Is this resolved now or do you still need help with it

[aarondailey]

This issue is NOT resolved and still happening.. Any ideas?

[mikeleebrla]

I know this thread is a little old but I had this same issue.  The fix was resetting the MTP that the ICT (Inter-Cluster Trunk) uses on the 9.x side of the call (the end that couldn't put the call on hold, xfer, etc.)