[asterisk-users] load balance with 2 wan connections

[Sherwood McGowan]

The biggest issue with any solution to use two different providers for
your IP service that will be used by your VOIP provider to deliver
calls to your Asterisk server, is that each internet service will have
a separate address. Therefore, for INBOUND calls, your VOIP provider
will have to do the load balancing. For outbound calls, it won't be
that hard as long as your provider allows you to send calls from both
IP addresses.