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]

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*/