name mode size
etc 040000
test 040000
Makefile 100644 168B
Readme.b2b_connect 100644 1.49kB
b2b_connect.cpp 100644 7.26kB
b2b_connect.h 100644 2.68kB
b2b_connect application This application is a full back2back user agent (i.e. both signaling and media is handled by SEMS and each user agent, caller and callee, only see the SEMs IP address). Thus, the outgoing call is connected in B2BUA mode with media relay ('b2abua'), so technically the two legs are independent sip dialogs and media sessions. The outgoing calls (B leg) are optionally SIP authenticated, so for example, normal gateways can be used. The uac_auth module must be loaded for this to work. If the uac_auth module is not loaded, the outgoing calls are not authenticated. P-App-Param in the INVITE sent to SEMS contains information required to do the second call from SEMS to callee, together with the request URI. The request URI username part should contain the user to call, while the P-App-Param should contain the domain SEMS should add to the username, as well as credentials (if the outgoing call must be authenticated). Example for SER: R-URI: john@semsip:5070 append_hf("P-App-Param: u=semsuser;;p=password\r\n"); This will result in sems trying to set up a call to If a 407 Authentication required is received, semsuser and 'password' will be used as credentials. If b2b_connect.conf parameter transparent_destination is set to true (default is false), then Request URI and To URI are passed to the second leg unaltered. Improvements are of course welcome as svn diff to the semsdev mailing list.