G711 Fax + T38 Fax Mode (G711,T38)

Fax Voip T.38 Modem will start in the mode of sending G711 fax. If T.38 re-invite is received from the other side, Fax Voip T.38 Modem switches to T.38 and sends T.38 fax. If T.38 re-invite not received, Fax Voip T.38 Modem continues to use the audio mode (G711 fax) for sending a fax. To set this mode in VOIP Outgoing Call Routing rule:

1.     Check G.711 audio fax option.

2.     Check T.38 fax option.

3.     Uncheck Send T.38 re-invite option.

Notes

• It is recommended to use this mode with SIP/H.323 provider that does not have a stable support for T.38 standard. Or, for example, together with PBX, that operates with different SIP/H.323 providers (with support and without support for T.38).
• This fax mode can be used instead of any of the above two modes.