Technical data

Table Of Contents
COMpact 3000 analog/ISDN/VoIP - Firmware Version 4.0 - Version of the Manual 03 02/11 411
Configuring and Managing the PBX
VoIP
Configuring the SIP Transport Protocol
3. Open the page Provider configuration > Network.
4. Select or clear the NAT Keep Alive check box.
5. Enter a value in the Interval entry field under NAT Keep Alive. The following entries
are possible:
Further steps:
Save your settings before you leave the page.
Configuring the SIP Transport Protocol
The SIP transport protocol indicates which protocol is used for the SIP transfer.
Configuration can be carried out 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)
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. Under SIP transport protocol, select one of the following options:
Further steps:
Save your settings before you leave the page.
Enables NAT Keep Alive.
Disables NAT Keep Alive. (No other action is required.)
1 to 255: NAT Keep Alive packets are sent every 1 to 255 second.
UDP: Selects UDP as the SIP transport protocol.
TCP: Selects TCP as the SIP transport protocol.