Technical data

Table Of Contents
416 COMpact 3000 analog/ISDN/VoIP - Firmware Version 4.0 - Version of the Manual 03 02/11
Configuring and Managing the PBX
VoIP
Switching T.38 for Fax over IP On/Off
Requirements:
External VoIP channel (COMpact 3000 VoIP or VoIP channels purchased and activated in
the Upgrade Center)
Configuration manager, opened with sufficient authorization
1. Open the page CONFIGURATION > Voice over IP (VoIP) > VoIP provider.
2. Click in the line of the corresponding VoIP provider.
The Provider configuration opens.
3. Open the page Provider configuration > Network.
4. Select or clear the Echo cancellation check box under Quality.
Further steps:
Save your settings before you leave the page.
Switching T.38 for Fax over IP On/Off
Enabling T.38 (procedures for real-time Group 3 facsimile communication over IP networks)
makes smooth fax transmission possible.
Switching this on/off can be done as follows:
Separately for VoIP providers
Via the configuration manager
Requirements:
External VoIP channel (COMpact 3000 VoIP or VoIP channels purchased and activated in
the Upgrade Center)
Provider support for T.38
Configuration manager, opened with sufficient authorization
Configured internal fax subscribers
1. Open the page CONFIGURATION > Voice over IP (VoIP) > VoIP provider.
2. Click in the line of the corresponding VoIP provider.
Enables echo cancellation.
Disables echo cancellation.