Trouble with hold and tranfer function on new SV9500

[phadobas]

What's happening is this:
It's a pure IP system set up with a VS32 to provide MOH and 3-party conference.
The system is connected to another system via IP CCIS.

When a call comes in from that other system, it can't be put on hold or can't be transferred. When you press Hold or Transfer, nothing happens.
Internal calls CAN be put on Hold or transferred just fine.

This system is not in full use yet, the cutover will happen later, but this feature is bugged for several days now.

I've been through pretty much all ASYD and ASYDL documentation I could get my hands on, as well as reviewed ASFC for anything that could be wrong. I also checked ARTD for the IPCCIS route, but didn't find anything that would fix this problem.

I also went through the VS32 programming steps in the Data Programming Manual.

This is not to say I didn't miss something...

Anybody have any bright ideas?

 

[phadobas]

Resolved:
ASYDL
Sys1
Index 810
Bit0: PHC Music-on-hold source had to be changed from 0 to 1, so the MOH is provided from the "self office" not from the "distant office"

After this change was done, the Hold and Transfer buttons worked on calls that came in via IP CCIS.