pjsip账号验证,该如何解决

pjsip账号验证
账号通过函数pjsua_acc_add注册成功 怎样来验证账号和密码是否正确？？求大侠 帮忙!!!

[解决办法]

C/C++ code

pjsua_acc_config cfg;                                  pjsua_acc_config_default(&cfg);                    /*初始化一个帐户信息*/    cfg.id = pj_str("sip:"+m_user+"@"+m_domain );      /*以下配置帐户信息*/    cfg.cred_count = 1;    cfg.cred_info[0].realm = pjstr( domain );    cfg.cred_info[0].scheme = pj_str( "digest" );    cfg.cred_info[0].username = pj_str( "username" );    cfg.cred_info[0].data_type = PJSIP_CRED_DATA_PLAIN_PASSWD;    cfg.cred_info[0].data = pj_str( "password" );    status = pjsua_acc_add( &cfg, PJ_TRUE, &acc_id )   /*发出注册请求*/    if ( status != PJ_SUCCESS )    error_exit( “Error registration.” );    /*注册成功*/