Hi all, I am developing an application using pjsua that uses multiple NICs (outside and inside network). To achieve this using UDP I create two UDP transports that are bound to each NIC (bound_addr). Each transport also has public_addr option set to advertise the correct IP address in the 'Contact' header. I am also creating two RTP transports that are bound to each interface and have public_addr option set. I initializing the applications calls array appropriately so that correct RTP transport is used (on incoming/outgoing calls) therefore advertising the correct SDP c= field. To achieve the same using TCP I tried creating multiple TCP transports but i get an error message on creating the second TCP transport. Q1. Does pjsua support multiple TCP transports? I can overcome the problem with a single TCP transport that is not bound to any interface and is listening on both interfaces. I then create non-registering accounts and attach them to the transport using pjsua_acc_set_transport. These accounts then have force_contact option configured for internal/external interface so that correct 'Contact' header is sent. Currently i'm checking the source address of the incoming message in pjsua_call_on_incoming - pjsip_rx_data to determine if it came from internal/external interface and then I land the call on the appropriate account. What I would like to do is to detect which interface received the call (so that I can land it on the correct account) without having to specify all the internal networks to the application. Q2. Is there a way to read the destination IP address in pjsip_rx_data? Or when there is a single transport listening on multiple interfaces, is there a way to determine which interface received the message? Thanks in advance. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20101123/895eea1d/attachment.html>
