Customer connected new 2N IP doorphone to OS7200 v4.80 and have problems with DTMF tones for opening the door.

It's working from Samsung IP phones, but not working from DLI and dect (analog) ports.

We use MGI16 card, MPS function is off. Have tried setting dtmf type to RFC2833 but still not working.

Another strange issue is, if the doorphone calls an analog extension, it does not reccognise OnHook, and stays somehow in use. I have to clear the call manually in 6.3.5 Port clear.

Any ideas?