[SR-Users] Listen to to 2 NIC's IP addresses and establish call between

Hi Friends, I have to configure a Kamailio in to meet following requirements 1. PC having 2 NICs (NIC-A and NIC-B) with 2 different IPs (IP-A and IP-B) from 2 different service providers. Totally 2 different IPs. NIC-A attached to provider is a private SIP traffic provider and having IP-A. (no internet access) NIC-B attached to internet service provider and having IP-B. 2. I get SIP traffic to IP-A of NIC-A from SIP traffic provider. 3. I need to forward that SIP traffic to another SIP carrier in remote location using IP-B of NIC-B through internet and have the call establish without any issue. How can I achieve this with single instance of Kamailio running on same machine. Please advice me. Best Regards, Roy.