From the OBi1000 Admin Guide, page 74:
"The OBi1000 has a built-in MOH Server that can be invoked by specifying: an({prompt}) (where an stands for the internal
announcement server), and prompt is a specification of the source to play. The devices includes a Jazz track that can be used
for music on hold. To enable the built-in track, specify the MOHServiceNumber as an(jazz)"
Put that in, and two things were observed.
First, it doesn't work at all on inbound calls. So if someone calls in, and you put them on hold, it hangs up. No idea why.
Second, it doesn't half work on outbound calls. You can put them on hold, but silence ensues.
I tried a few other SIP-based providers, same thing.
Is there some trick to getting this to function? It's not a major big deal but it would really be nice if it worked.