Directing VoIP traffic out a specific Ethernet interface

If you are using two or more Ethernet interfaces on your PiaF server, you can direct SIP or IAX2 traffic out a specific interface by adding the following command to sip_general_custom.conf or iax_general_custom.conf:

bindaddr=“IP address of Ethernet interface”

e.g. This sends SIP traffic only out this port

In sip_general_custom.conf


This sends out IAX traffic out a separate port

In iax_general_custom.conf


Or you can send all VoIP traffic out one port and data traffic out the other. Note that the two ports should be on separate networks.