VOIP Settings

Display Name

Text entered here appears on the display of the remote phone or fax machine when Fax Voip T.38 Modem is making the outgoing call (NAME part of Caller ID). The default value for this field is 'FaxVoip Modem'. The Display Name can be overridden by the Outgoing Call Routing settings.

Default Username

By default, Fax Voip T.38 Modem uses the Username from this field. The default value for this field is 'FaxVoip'. This value is used as default SIP Username, H.323 ID and ISDN username (number) but can be overridden by the SIP, H.323 and ISDN CAPI 2.0 settings. The Default Username can be also overwritten by SIP Registration and Outgoing Call Routing settings. If you're using a digital Default Username here and don’t override it with other settings, the value of Default Username will be recognized by remote party as NUMBER part of Caller ID.

Voip Protocols

At least one of the following options should be selected:

Enable SIP

Check this option if you want to configure Fax Voip T.38 Modem to operate with SIP networks.

Enable H.323

Check this option if you want to configure Fax Voip T.38 Modem to operate with H.323 networks.

Enable ISDN CAPI

Check this option if you want to configure Fax Voip T.38 Modem to operate with ISDN line via CAPI 2.0 interface.

Network Options

Local RTP ports to listen on

The range of RTP ports used by Fax Voip T.38 Modem. By default Fax Voip T.38 Modem uses ports from 5000 to 5998.

STUN Server (and Port)

Address and port of the STUN Server to be used. Can be useful if you use NAT to determine your ip-address. This option may be useful in the case of SIP as well as in the case of H.323. Note, that the default STUN port is 3478. If STUN Server port is 3478 you may not enter ':3478' in this field.

Examples:

stun01.sipphone.com

stun.voipbuster.com

stun.yourstunserver.com:3478