I want the following setup:
1 Kamailio server to handle internal calls (A/V), IM and Presence.
1 Asterisk or any other way to communicate with an NGN where I will create
the SIP Trunk to route calls outside of the network.
Is this the right approach or there is a way to directly communicate with
the NGN to make a SIP trunk by using some external modules.
Any guidelines will be highly appreciated.
Rizwan Khan