Dear all, Please see this (new) article in PJSIP FAQ: http://www.pjsip.org/trac/wiki/FAQ#proxy-outbound The --proxy option in pjsua application corresponds to pjsua_acc_config.proxy setting in PJSUA-LIB. This specifies the route set that is specific for the particular SIP account. The --outbound option corresponds to pjsua_config.outbound_proxy setting in PJSUA-LIB. This specifies a global route set that is applicable for the whole endpoint (rather than a particular account), and will be used for all accounts in the application. When --service-route option (this option corresponds to pjsua_acc_config.enable_service_route setting in PJSUA-LIB) is enabled for the account (default is disabled), the --proxy settings will be updated with the content of Service-Route header in successful REGISTER response. In other words, if Service-Route header is not present in 2xx REGISTER response, the --proxy settings for the account will be cleared. Unlike --proxy option, the route settings in --outbound option are not be affected by Service-Route processing. Both --proxy and --outbound options can be specified multiple times in pjsua command line to specify more than one servers. When both settings are present, the initial total route set for a particular account is built by appending the servers in --proxy option to the servers in --outbound option. For example: Account A has the following --proxy setting: --proxy sip:PA1;lr --proxy sip:PA2;lr Account B has the following --proxy setting: --proxy sip:PB;lr And the --outbound setting is the following: --outbound sip:PO;lr With the above settings, the initial route set for account A will be computed as: Route: <sip:PO;lr>, <sip:PA1;lr>, <sip:PA2;lr> While the initial route set for account B will be computed as: Route: <sip:PO;lr>, <sip:PB;lr> If --service-route option is enabled for both accounts, and suppose the 2xx REGISTER responses for both accounts do not have Service-Route header, then the route sets for both accounts will be updated to contain only the outbound proxy: Route: <sip:PO;lr> -- Benny Prijono http://www.pjsip.org
