Samsung OS7400 4.80 Australia.
2 x OAS, all handsets IP SMT.
We have a customer on one phone system but multiple areas eg car company A and car company B.
A uses ISDN PRI.
B uses SIP Trunks.
Music on hold is currently a external radio.
The problem is Company B we cant get the Music on Hold working but Tone and chimes work. BGM works (for testing only).
If I choose the same MOH source as Company A its just dead air.
And HOLD MODE receive/send has been set in carrier options (which worked ok at another site with the same carrier/telco).


The other problem is the Svmi20i is not recognising DTMF tones on the SIP trunks but eftpos and banking works ok.

Port forwarding and gateways for MGI,MPS,RTG are correct.

Any ideas?