Hi All,
I have a client with a virtual RightFax server and we've just undertaken a migration to SIP.
We can receive faxes without an issue, however sending faxes is being rejected with '403 Forbidden' by the controller.
We're using Gamma SIP trunks on the controller, with T.38 enabled. The RightFax SIP trunk is enabled for Public Access in the COS.
The actual message back from the MiVB is '29h Access Barred'
Any ideas?