Modifying FAX Relay Profile Settings

To configure FAX Relay settings, do the following:

1- Click Fax Relay in the Editing Profile window, to display the customizable options.

2- Modify settings as required.

3- To configure NSE, check the Use NSE checkbox.

NOTE:

If NSE exchange is possible (negociated in the SDP), the switch to passthrough will happen in the RTP stream and no longer wiil occur with a SIP re-INVITE. This implementation of NSE currently only supports a switch to passthrough, which means that you can have NSE packets switching to T.38.

• Click Save

List of Parameters

Fax/Modem Relay

• Enable Fax/Modem Relay

• Detection Mode

• Relay Mode

• Modem vs. Fax distinction timeout

• Fax/Modem tones detection duration

• Enable early Fax/Modem tone detection

• Switch to FAX relay upon CNG tone

• Expected CNG tones

• Switch to passthrough upon Bell ANS

T.38 Parameters

• Use V.34

• Maximum Bit Rate

• Fill Bit Removal

• Redundancy Count

• Transmission level (-1dBm unit)

• Prevent direct invite in T.38

Fax/Modem Pass-through Parameters

• Detection Type

• Codec

• Jitter Buffer Depth

• Packet Duration

• Use NSE

• Support V.152 VBD

• Force V.152 VBD