Hi All, PJSUA-API Accounts Management pj_status_t <http://www.pjsip.org/pjlib/docs/html/group__PJ__BASIC.htm#gb43ba3167bd2a2ab4580509dbf79200e> pjsua_acc_add ( const pjsua_acc_config <http://www.pjsip.org/pjsip/docs/html/structpjsua__acc__config.htm> * /acc_cfg/, pj_bool_t <http://www.pjsip.org/pjlib/docs/html/group__PJ__BASIC.htm#g1dc7a356fb36bd2dee2bc7d6c7e817e4> /is_default/, pjsua_acc_id <http://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__BASE.htm#g01a78e17d7787f7e0ea5efd240f3e427> * /p_acc_id/ ) Add a new account to pjsua. PJSUA must have been initialized (with pjsua_init() <http://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__BASE.htm#g72ccd5cc7dbf6f26b4ffedc0d9728a2d>) before calling this function. If registration is configured for this account, this function would also start the SIP registration session with the SIP registrar server. This SIP registration session will be maintained internally by the library, and application doesn't need to do anything to maintain the registration session. *Parameters:* /acc_cfg/ Account configuration. /is_default/ If non-zero, this account will be set as the default account. The default account will be used when sending outgoing requests (e.g. making call) when no account is specified, and when receiving incoming requests when the request does not match any accounts. It is recommended that default account is set to local/LAN account. /p_acc_id/ Pointer to receive account ID of the new account. *Returns:* PJ_SUCCESS on success, or the appropriate error code. *Python:* The function returns (status, account_id) tuple: status, account_id = py_pjsua.acc_add(acc_cfg, is_default) From the above, " This SIP registration session will be maintained internally by the library, and application doesn't need to do anything to maintain the registration session ", can any one pls explain where / in which library the registration session is maintained ? -- Thanks And Regards, Srivatsan.D,