My Current Setup is
2x Sip Trunks - Provider VoIP Unlimited Full T38 Support
2x routes one for phones and one for fax number.
fax number routed to extention 104 attached to the fxs port.
Fax Machine is a OKI 5550MFP - Multi Fuction Printer/fax/Scanenr
OKI works perfectly when attached to the BT (PSTN) Line
when atached to the fxs port the number rings out and on the fax speeker there is no incomming ringing....... When you hang up the incomming call then the fax picks up?? weired, I have spent hours on the phone with Cisco Support and they have been helpful in finding out that the uc320 fxs port works (I bought a cheep £4 phone from tesco to test it)
I have attached the phone to the (phone) port on the Oki and the phone rings but the fax doesn't and work perfectly if you manually answer it. I have played with the fax settings but to no avail, as you can't change the baud rate on this machine as it's hard coded apparently. to 33k
any help or a look further into this would be great.... as I am really lost what to do next apart from plugging it into the BT line which defeats the purpose......