ios - 如何使用 Asterisk iOS 进行 PJSIP 电话 session (在电话 session 中添加新成员)？

Question

我正在使用 PJSIP 2.0、Xcode 7.3 和 ios 9.2.1，假设我们有 3 个用户 A、B 和 C 用户。
当 A 调用 B(它工作正常)但是当 A 在通话中添加成员 C(作为电话 session )时，A 和 B 可以与 C 通信，但 C 永远不会从 B 获得语音。(C 和 A 通信正常)。那么如何管理 C 和 B 之间的通信。

Answer 1

这段代码对我来说工作正常，只需要合并 pjsua_conf_connect() 槽号 0 1 和，这是我们的要求。

static void on_call_media_state(pjsua_call_id call_id)
    {
        pjsua_call_info ci;
      SiphonApplication *app = (SiphonApplication *)[SiphonApplication sharedApplication];

        pjsua_call_get_info(call_id, &ci);
    //    PJ_LOG(3,(THIS_FILE,"on_call_media_state status %d count %d",
    //      ci.media_status
    //      pjmedia_conf_get_connect_count()));

      /* FIXME: Stop ringback */
      sip_ring_stop([app pjsipConfig]); 

      /* Connect ports appropriately when media status is ACTIVE or REMOTE HOLD,
       * otherwise we should NOT connect the ports.
       */

        pjsua_call_media_status slotOne = ci.media_status;
      if (slotOne == PJSUA_CALL_MEDIA_ACTIVE ||
          slotOne == PJSUA_CALL_MEDIA_REMOTE_HOLD)
      {
        // When media is active, connect call to sound device.
        pjsua_conf_connect(ci.conf_slot, 0);
        pjsua_conf_connect(0, ci.conf_slot);

        pjsua_conf_adjust_rx_level(0, 3.0);
        pjsua_conf_adjust_tx_level(0, 5.0);


      }


          [[NSUserDefaults standardUserDefaults] setObject: @"CallIsRunning"forKey:@"CallIsRunning"];
        if (ci.media_status == PJSUA_CALL_MEDIA_ACTIVE) { //    When media is active, connect call to sound device.
            pjsua_conf_port_id slotOne = ci.conf_slot;
            //        pjsua_conf_connect(slotOne, 0);
            //        pjsua_conf_connect(0, slotOne);
            //mergeCalls=true;

            mergeCalls=false;

            int max=pjsua_call_get_count();
            if (max==2) {

                [[NSUserDefaults standardUserDefaults] setInteger:pjsua_call_get_count() forKey:@"callCountForCalling"];
                mergeCalls=true;
            }


          NSString *grpID=  [[NSUserDefaults standardUserDefaults] objectForKey:@"callerTypegroup"];
            // if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"callerTypegroup"] length]>1)

            if (mergeCalls == true && grpID.length==0) {

                pjsua_conf_port_id slotTwo = pjsua_call_get_conf_port(activeCallID);
                pjsua_conf_connect(slotOne, slotTwo);
                pjsua_conf_connect(slotTwo, slotOne);

                // since the "activeCallID" is already  talking, its conf_port is already connected to "0" (and vice versa) ...

            } else {
                activeCallID = call_id;
            }
        } else if (ci.media_status == PJSUA_CALL_MEDIA_LOCAL_HOLD) {
            // … callSuspended(callID);
        }

    }