NF4V Voice> SIP Advanced Setting> Dtmf Relay setting>Current setting will be "InBand"> Click the drop down box and select RFC2833> Dtmf Relay payload setting(96-127) will pop up> Update to 101> Apply
Thanks, thought it might be an easy fix. I have tried as you suggested but I am getting an engaged tone when I try to call anyone. Any other suggestions? (It is the NF4V by the way).
Rats, that should have fixed it. May be a SIP issue but will need your account number to sort that. Might have to give the guys a call on the 0800 number for this one.
I have emailed support. It appears that I can still make outgoing calls using the copper line but I can't receive. Using VOIP I can't make outgoing calls but I can receive them.
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