G711 Fax Mode (G711)

When sending or receiving faxes via ISDN CAPI 2.0 connection you can use audio fax mode (fax over G.711 codec). When sending/receiving faxes using this method, Fax Voip T.38 Console does not use fax features of your ISDN card, as it is usually done in the CAPI 2.0 fax applications. Fax is transmitted as standard audio data. Fax Voip T.38 Console operates the same way like analog fax machine that connected to the ISDN line via adapter. Fax Voip T.38 Console uses the same technology that is used when transmitting audio faxes via SIP or H.323 (Fax over G.711 codec).

To apply this mode to outgoing ISDN CAPI 2.0 calls do the following:

1.     Open Fax Voip T.38 Console Control Panel.

2.     Click VOIP in TreeView, then click Outgoing Plan.

3.     To create new rule click New. To edit an existing rule select it and click Edit (or double-click the selected rule).

4.     In the VOIP Outgoing Call Routing Rule window, on the General page, in the Dial on Line area select ISDN CAPI 2.0 to route calls to CAPI 2.0 line. The option If to send a fax via ISDN CAPI 2.0 will be selected automatically.

5.     Switch to the Fax panel.

6.     In the Fax Support section, check G.711 audio fax option.

7.     In the G.711 Audio Fax Settings area configure aditional fax parameters if need.

8.     Click <OK> button to fix changes.

9.     Click <Apply> button to save modified settings for rules. Do not forget to restart Fax Voip T.38 Console to operate with new settings.

To apply this mode to incoming ISDN CAPI 2.0 calls do the following:

1.     Open Fax Voip T.38 Console Control Panel.

2.     Click VOIP in TreeView, then click Incoming Plan.

3.     To create new rule click New. To edit an existing rule select it and click Edit (or double-click the selected rule).

4.     In the VOIP Incoming Call Routing Rule window, on the General page, in the VOIP Protocol area select ISDN CAPI 2.0 option to apply this rule to incoming ISDN calls.

5.     In the Call to Fax Voip T.38 Console area select Receive Faxes. In the Fax Protocol area select G.711 (audio) option.

6.     On the Fax page, in the G.711 Audio Fax Settings area configure aditional fax parameters if need.

7.     Click <OK> button to fix changes.

8.     Click <Apply> button to save modified settings for rules. Do not forget to restart Fax Voip T.38 Console to operate with new settings.

Notes

• It is recommended to use this mode with ISDN CAPI 2.0 connection if only your ISDN card does not support native ISDN faxing.
• This mode is currently always used with the Send a fax (fax on demand) option in the case of incoming calls via ISDN CAPI 2.0 connection.