...

    $("#switchCamBtn").click(function() {
       if (currentCall) {
           currentCall.switchCam().then(function(id) {
               $('#cameraList option:selected').prop('selected', false);
               $("#cameraList option[value='"+ id +"']").prop('selected', true);
           }).catch(function(e) {
               console.log("Error " + e);
           });
       }
    }).prop('disabled', true);

Known issues

1. It's impossible to make a SIP call if 'SIP Login' and 'SIP Authentification name' fields are incorrect

Symptoms: SIP call stucks in PENDING state.

Solution: according to the standard, 'SIP Login' and 'SIP Authentification name' should not contain any of unescaped spaces and special symbols and should not be enclosed in angle brackets '<>'.

...

WebRTC statistics displaying

A client application can get WebRTC statistics according to the standard during a SIP call. The statistics can be displayed in browser, for example:

Image Added

Note that in Safari browser audio only statistics can be displayed.

1. Statistics displaying during a SIP call

call.getStats() code:

sipLogin='Ralf C12441@host.com'
sipAuthenticationName='Ralf C'
        currentCall.getStats(function (stats) {
            if (stats && stats.outboundStream) {
                if (stats.outboundStream.videoStats) {
                    $('#videoStatBytesSent').text(stats.outboundStream.videoStats.bytesSent);
                    $('#videoStatPacketsSent').text(stats.outboundStream.videoStats.packetsSent);
                    $('#videoStatFramesEncoded').text(stats.outboundStream.videoStats.framesEncoded);
                } else {
                    ...
                }

                if (stats.outboundStream.audioStats) {
                    $('#audioStatBytesSent').text(stats.outboundStream.audioStats.bytesSent);
                    $('#audioStatPacketsSent').text(stats.outboundStream.audioStats.packetsSent);
                } else {
                    ...
                }
            }
        });

Known issues

1. It's impossible to make a SIP call if 'SIP Login' and 'SIP Authentification name' fields are incorrect

Symptoms: SIP call stucks in PENDING state.

Solution: according to the standard, 'SIP Login' and 'SIP Authentification name' should not contain any of unescaped spaces and special symbols and should not be enclosed in angle brackets '<>'.

For example, this is not allowed by the standard

sipLogin='Ralf C12441@host.com'
sipAuthenticationName='Ralf C'
sipPassword='demo'
sipVisibleName='null'

and this is allowed

sipLogin='Ralf_C12441'
sipAuthenticationName='Ralf_C'
sipPassword='demo'
sipVisibleName='null'

and this is allowed

sipLogin='Ralf_C12441'
sipAuthenticationName='Ralf_C'
sipPassword='demo'
sipVisibleName='Ralf C'

2. There are some problems with sound while SIP calls from Edge browser.

Symptoms:

a) The outgoing sound is sometimes abruptly muffled, then it goes normally.

b) The incoming sound is heard only if you speak into the microphone.

Решение:

...

Ralf C'

2. There are some problems with sound while SIP calls from Edge browser.

Symptoms:

a) The outgoing sound is sometimes abruptly muffled, then it goes normally.

b) The incoming sound is heard only if you speak into the microphone.

Solution:

Switch SILK and G.722 codecs usage off in SIP calls for Edge browser.

3. Microphone swithing does not work in Safari browser.

Symptoms: microphone does not switch using switchMic() WCS WebSDK method.

Solution: use another browser, because Safari always uses sound input microphone, that is chosen in system sound menu (hold down the option (alt) button and click on the sound icon in the menu bar). When microphone is chosen in sound menu, Mac reboot is required.

If Logitech USB camers microphone does not work (when it is chosen in sound menu), format / sample rate changing in Audio MIDI Setup and rebooting can help.