LH-265-audio #17

Merged
cristi merged 2 commits from LH-265-audio into develop 2022-12-06 12:45:09 +00:00
7 changed files with 921 additions and 1023 deletions

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@ -22,18 +22,20 @@
2. Run the `npm start:prod` command to start the server in production mode.
(To connect to the terminal, use `pm2 log video-server`)
---
### Web client
- The server will start by default on port 3000, and the ssl certificates will have to be configured
- The web client can be accessed using the /sfu path
ex: http://localhost:3000/sfu/?assetId=1&&accountId=1&producer=true&assetName=Adi&assetType=linx
ex: https://HOST/sfu/?assetId=1&&accountId=1&producer=true&dest_asset_id=75&assetName=Adi
assetId = asset id of the unit on which you are doing the test
accountId = account id of the unit on which you are doing the test
producer = it will always be true because you are the producer
(it's possible to put false, but then you have to have another client with producer true)
assetName = asset name of the unit on which you are doing the test
assetType = asset type of the unit on which you are doing the test
dest_asset_id= the addressee with whom the call is made
- To make a call using this client, you need a microphone and permission to use it
- For any changes related to the client, the command `npm run watch' will have to be used to generate the bundle.js used by the web client
### Demo project
The demo project used initially and then modified for our needs `https://github.com/jamalag/mediasoup2`

261
app.js
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@ -90,28 +90,81 @@ worker = createWorker();
// https://mediasoup.org/documentation/v3/mediasoup/rtp-parameters-and-capabilities/#RtpCodecCapability
// list of media codecs supported by mediasoup ...
// https://github.com/versatica/mediasoup/blob/v3/src/supportedRtpCapabilities.ts
const mediaCodecs = [
const mediaCodecs = [
{
kind: 'audio',
mimeType: 'audio/opus',
clockRate: 48000,
channels: 2,
kind : 'audio',
mimeType : 'audio/opus',
clockRate : 48000,
channels : 2
},
{
kind: 'video',
mimeType: 'video/VP8',
clockRate: 90000,
parameters: {
'x-google-start-bitrate': 1000,
kind : 'video',
mimeType : 'video/VP8',
clockRate : 90000,
parameters :
{
'x-google-start-bitrate' : 1000
},
channels : 2
},
{
kind : 'video',
mimeType : 'video/VP9',
clockRate : 90000,
parameters :
{
'profile-id' : 2,
'x-google-start-bitrate' : 1000
}
},
{
kind : 'video',
mimeType : 'video/h264',
clockRate : 90000,
parameters :
{
'packetization-mode' : 1,
'profile-level-id' : '4d0032',
'level-asymmetry-allowed' : 1,
'x-google-start-bitrate' : 1000
}
},
{
kind : 'video',
mimeType : 'video/h264',
clockRate : 90000,
parameters :
{
'packetization-mode' : 1,
'profile-level-id' : '42e01f',
'level-asymmetry-allowed' : 1,
'x-google-start-bitrate' : 1000
}
}
// {
// kind: 'audio',
// mimeType: 'audio/opus',
// clockRate: 48000,
// channels: 2,
// },
// {
// kind: 'video',
// mimeType: 'video/VP8',
// clockRate: 90000,
// parameters: {
// 'x-google-start-bitrate': 1000,
// },
// },
];
const closeCall = (callId) => {
try {
if (callId && videoCalls[callId]) {
videoCalls[callId].producer?.close();
videoCalls[callId].consumer?.close();
videoCalls[callId].producerVideo?.close();
videoCalls[callId].producerAudio?.close();
videoCalls[callId].consumerVideo?.close();
videoCalls[callId].consumerAudio?.close();
videoCalls[callId]?.consumerTransport?.close();
videoCalls[callId]?.producerTransport?.close();
videoCalls[callId]?.router?.close();
@ -230,29 +283,54 @@ peers.on('connection', async socket => {
- The event sent by the client (PRODUCER) after successfully connecting to producerTransport
- For the router with the id callId, we make produce on producerTransport
- Create the handler on producer at the 'transportclose' event
*/
socket.on('transport-produce', async ({ kind, rtpParameters, appData }, callback) => {
try {
const callId = socketDetails[socket.id];
if (typeof rtpParameters === 'string') rtpParameters = JSON.parse(rtpParameters);
*/
socket.on('transport-produce', async ({ kind, rtpParameters, appData }, callback) => {
try {
const callId = socketDetails[socket.id];
if (typeof rtpParameters === 'string') rtpParameters = JSON.parse(rtpParameters);
console.log(`[transport-produce] kind: ${kind} | socket.id: ${socket.id} | callId: ${callId}`);
console.log('kind', kind);
console.log('rtpParameters', rtpParameters);
console.log('[transport-produce] | socket.id', socket.id, '| callId', callId);
videoCalls[callId].producer = await videoCalls[callId].producerTransport.produce({
kind,
rtpParameters,
});
console.log(`[transport-produce] Producer ID: ${videoCalls[callId].producer.id} | kind: ${videoCalls[callId].producer.kind}`);
videoCalls[callId].producer.on('transportclose', () => {
const callId = socketDetails[socket.id];
console.log('transport for this producer closed', callId)
closeCall(callId);
});
if (kind === 'video') {
videoCalls[callId].producerVideo = await videoCalls[callId].producerTransport.produce({
kind,
rtpParameters,
});
// Send back to the client the Producer's id
callback && callback({
id: videoCalls[callId].producer.id
});
console.log(`[transport-produce] Producer ID: ${videoCalls[callId].producerVideo.id} | kind: ${videoCalls[callId].producerVideo.kind}`);
videoCalls[callId].producerVideo.on('transportclose', () => {
const callId = socketDetails[socket.id];
console.log('transport for this producer closed', callId)
closeCall(callId);
});
// Send back to the client the Producer's id
callback && callback({
id: videoCalls[callId].producerVideo.id
});
} else if (kind === 'audio') {
videoCalls[callId].producerAudio = await videoCalls[callId].producerTransport.produce({
kind,
rtpParameters,
});
console.log(`[transport-produce] Producer ID: ${videoCalls[callId].producerAudio.id} | kind: ${videoCalls[callId].producerAudio.kind}`);
videoCalls[callId].producerAudio.on('transportclose', () => {
const callId = socketDetails[socket.id];
console.log('transport for this producer closed', callId)
closeCall(callId);
});
// Send back to the client the Producer's id
callback && callback({
id: videoCalls[callId].producerAudio.id
});
}
} catch (error) {
console.log(`ERROR | transport-produce | callId ${socketDetails[socket.id]} | ${error.message}`);
}
@ -281,48 +359,36 @@ peers.on('connection', async socket => {
*/
socket.on('consume', async ({ rtpCapabilities }, callback) => {
try {
console.log(`[consume] rtpCapabilities: ${JSON.stringify(rtpCapabilities)}`);
const callId = socketDetails[socket.id];
console.log('[consume] callId', callId);
// Check if the router can consume the specified producer
if (videoCalls[callId].router.canConsume({
producerId: videoCalls[callId].producer.id,
const canConsumeVideo = !!videoCalls[callId].producerVideo && !!videoCalls[callId].router.canConsume({
producerId: videoCalls[callId].producerVideo.id,
rtpCapabilities
})) {
console.log('[consume] Can consume', callId);
// Transport can now consume and return a consumer
videoCalls[callId].consumer = await videoCalls[callId].consumerTransport.consume({
producerId: videoCalls[callId].producer.id,
rtpCapabilities,
paused: true,
});
})
// https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-transportclose
videoCalls[callId].consumer.on('transportclose', () => {
const callId = socketDetails[socket.id];
console.log('transport close from consumer', callId);
closeCall(callId);
});
const canConsumeAudio = !!videoCalls[callId].producerAudio && !!videoCalls[callId].router.canConsume({
producerId: videoCalls[callId].producerAudio.id,
rtpCapabilities
})
// https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-producerclose
videoCalls[callId].consumer.on('producerclose', () => {
const callId = socketDetails[socket.id];
console.log('producer of consumer closed', callId);
closeCall(callId);
});
console.log('[consume] canConsumeVideo', canConsumeVideo);
console.log('[consume] canConsumeAudio', canConsumeAudio);
// From the consumer extract the following params to send back to the Client
const params = {
id: videoCalls[callId].consumer.id,
producerId: videoCalls[callId].producer.id,
kind: videoCalls[callId].consumer.kind,
rtpParameters: videoCalls[callId].consumer.rtpParameters,
};
// Send the parameters to the client
callback({ params });
if (canConsumeVideo && !canConsumeAudio) {
console.log('1');
const videoParams = await consumeVideo(callId, rtpCapabilities)
console.log('videoParams', videoParams);
callback({ videoParams, audioParams: null });
} else if (canConsumeVideo && canConsumeAudio) {
console.log('2');
const videoParams = await consumeVideo(callId, rtpCapabilities)
const audioParams = await consumeAudio(callId, rtpCapabilities)
callback({ videoParams, audioParams });
} else {
console.log(`[canConsume] Can't consume | callId ${callId}`);
console.log(`[consume] Can't consume | callId ${callId}`);
callback(null);
}
} catch (error) {
@ -339,13 +405,71 @@ peers.on('connection', async socket => {
try {
const callId = socketDetails[socket.id];
console.log(`[consumer-resume] callId ${callId}`)
await videoCalls[callId].consumer.resume();
await videoCalls[callId].consumerVideo.resume();
await videoCalls[callId].consumerAudio.resume();
} catch (error) {
console.log(`ERROR | consumer-resume | callId ${socketDetails[socket.id]} | ${error.message}`);
}
});
});
const consumeVideo = async (callId, rtpCapabilities) => {
videoCalls[callId].consumerVideo = await videoCalls[callId].consumerTransport.consume({
producerId: videoCalls[callId].producerVideo.id,
rtpCapabilities,
paused: true,
});
// https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-transportclose
videoCalls[callId].consumerVideo.on('transportclose', () => {
const callId = socketDetails[socket.id];
console.log('transport close from consumer', callId);
closeCall(callId);
});
// https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-producerclose
videoCalls[callId].consumerVideo.on('producerclose', () => {
const callId = socketDetails[socket.id];
console.log('producer of consumer closed', callId);
closeCall(callId);
});
return {
id: videoCalls[callId].consumerVideo.id,
producerId: videoCalls[callId].producerVideo.id,
kind: 'video',
rtpParameters: videoCalls[callId].consumerVideo.rtpParameters,
}
}
const consumeAudio = async (callId, rtpCapabilities) => {
videoCalls[callId].consumerAudio = await videoCalls[callId].consumerTransport.consume({
producerId: videoCalls[callId].producerAudio.id,
rtpCapabilities,
paused: true,
});
// https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-transportclose
videoCalls[callId].consumerAudio.on('transportclose', () => {
const callId = socketDetails[socket.id];
console.log('transport close from consumer', callId);
closeCall(callId);
});
// https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-producerclose
videoCalls[callId].consumerAudio.on('producerclose', () => {
const callId = socketDetails[socket.id];
console.log('producer of consumer closed', callId);
closeCall(callId);
});
return {
id: videoCalls[callId].consumerAudio.id,
producerId: videoCalls[callId].producerAudio.id,
kind: 'audio',
rtpParameters: videoCalls[callId].consumerAudio.rtpParameters,
}
}
/*
- Called from at event 'createWebRtcTransport' and assigned to the consumer or producer transport
- It will return parameters, these are required for the client to create the RecvTransport
@ -393,6 +517,7 @@ const createWebRtcTransportLayer = async (callId, callback) => {
dtlsParameters: transport.dtlsParameters,
};
console.log('[createWebRtcTransportLayer] callback params', params);
// Send back to the client the params
callback({ params });

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@ -43,6 +43,4 @@ fi
## POST BUILD
cd -
cd -

File diff suppressed because it is too large Load Diff

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@ -1,5 +1,4 @@
module.exports = {
hubAddress: 'https://hub.dev.linx.safemobile.com/',
mediasoupAddress: 'https://video.safemobile.org/mediasoup',
// mediasoupAddress: 'http://localhost:3000/mediasoup',
mediasoupAddress: 'https://video.safemobile.org',
}

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@ -43,7 +43,7 @@
<tr>
<td>
<div id="sharedBtns">
<video id="localVideo" autoplay class="video" ></video>
<video id="localVideo" autoplay class="video" muted></video>
</div>
</td>
<td>

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@ -12,145 +12,157 @@ let callId = parseInt(urlParams.get('callId')) || null;
const IS_PRODUCER = urlParams.get('producer') === 'true' ? true : false
console.log('[URL] ASSET_ID', ASSET_ID, '| ACCOUNT_ID', ACCOUNT_ID, '| callId', callId, ' | IS_PRODUCER', IS_PRODUCER)
let socket
hub = io(config.hubAddress)
const connectToMediasoup = () => {
socket = io(config.mediasoupAddress, {
reconnection: true,
reconnectionDelay: 1000,
reconnectionDelayMax : 5000,
reconnectionAttempts: Infinity
})
socket.on('connection-success', ({ _socketId, existsProducer }) => {
console.log(`[MEDIA] ${config.mediasoupAddress} | connected: ${socket.connected} | existsProducer: ${existsProducer}`)
if (!IS_PRODUCER && existsProducer && consumer === undefined) {
goConnect()
// document.getElementById('btnRecvSendTransport').click();
}
if (IS_PRODUCER && urlParams.get('testing') === 'true') { getLocalStream() }
})
}
if (IS_PRODUCER === true) {
hub.on('connect', async () => {
console.log(`[HUB] ${config.hubAddress} | connected: ${hub.connected}`)
connectToMediasoup()
hub.emit(
'ars',
JSON.stringify({
ars: true,
asset_id: ASSET_ID,
account_id: ACCOUNT_ID,
})
)
hub.on('video', (data) => {
const parsedData = JSON.parse(data);
if (parsedData.type === 'notify-request') {
console.log('video', parsedData)
originAssetId = parsedData.origin_asset_id;
// originAssetName = parsedData.origin_asset_name;
// originAssetTypeName = parsedData.origin_asset_type_name;
callId = parsedData.video_call_id;
console.log('[VIDEO] notify-request | IS_PRODUCER', IS_PRODUCER, 'callId', callId);
getLocalStream()
}
if (parsedData.type === 'notify-end') {
console.log('[VIDEO] notify-end | IS_PRODUCER', IS_PRODUCER, 'callId', callId);
resetCallSettings()
}
})
})
hub.on('connect_error', (error) => {
console.log('connect_error', error);
});
hub.on('connection', () => {
console.log('connection')
})
hub.on('disconnect', () => {
console.log('disconnect')
})
} else {
connectToMediasoup()
}
console.log('🟩 config', config)
let socket, hub
let device
let rtpCapabilities
let producerTransport
let consumerTransport
let producer
let producerVideo
let producerAudio
let consumer
let originAssetId
// let originAssetName = 'Adi'
// let originAssetTypeName = 'linx'
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#ProducerOptions
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#transport-produce
let params = {
// mediasoup params
let videoParams = {
encodings: [
{
rid: 'r0',
maxBitrate: 100000,
scalabilityMode: 'S1T3',
},
{
rid: 'r1',
maxBitrate: 300000,
scalabilityMode: 'S1T3',
},
{
rid: 'r2',
maxBitrate: 900000,
scalabilityMode: 'S1T3',
},
{ scaleResolutionDownBy: 4, maxBitrate: 500000 },
{ scaleResolutionDownBy: 2, maxBitrate: 1000000 },
{ scaleResolutionDownBy: 1, maxBitrate: 5000000 },
{ scalabilityMode: 'S3T3_KEY' }
],
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#ProducerCodecOptions
codecOptions: {
videoGoogleStartBitrate: 1000
}
}
const streamSuccess = (stream) => {
console.log('[streamSuccess]');
localVideo.srcObject = stream
const track = stream.getVideoTracks()[0]
params = {
track,
...params
let audioParams = {
codecOptions :
{
opusStereo : true,
opusDtx : true
}
}
setTimeout(() => {
hub = io(config.hubAddress)
const connectToMediasoup = () => {
socket = io(config.mediasoupAddress, {
reconnection: true,
reconnectionDelay: 1000,
reconnectionDelayMax : 5000,
reconnectionAttempts: Infinity
})
socket.on('connection-success', ({ _socketId, existsProducer }) => {
console.log(`[MEDIA] ${config.mediasoupAddress} | connected: ${socket.connected} | existsProducer: ${existsProducer}`)
if (!IS_PRODUCER && existsProducer && consumer === undefined) {
goConnect()
// document.getElementById('btnRecvSendTransport').click();
}
if (IS_PRODUCER && urlParams.get('testing') === 'true') { getLocalStream() }
})
}
if (IS_PRODUCER === true) {
hub.on('connect', async () => {
console.log(`[HUB]! ${config.hubAddress} | connected: ${hub.connected}`)
connectToMediasoup()
hub.emit(
'ars',
JSON.stringify({
ars: true,
asset_id: ASSET_ID,
account_id: ACCOUNT_ID,
})
)
hub.on('video', (data) => {
const parsedData = JSON.parse(data);
if (parsedData.type === 'notify-request') {
console.log('video', parsedData)
originAssetId = parsedData.origin_asset_id;
// originAssetName = parsedData.origin_asset_name;
// originAssetTypeName = parsedData.origin_asset_type_name;
callId = parsedData.video_call_id;
console.log('[VIDEO] notify-request | IS_PRODUCER', IS_PRODUCER, 'callId', callId);
getLocalStream()
}
if (parsedData.type === 'notify-end') {
console.log('[VIDEO] notify-end | IS_PRODUCER', IS_PRODUCER, 'callId', callId);
resetCallSettings()
}
})
})
hub.on('connect_error', (error) => {
console.log('connect_error', error);
});
hub.on('connection', () => {
console.log('connection')
})
hub.on('disconnect', () => {
console.log('disconnect')
})
} else {
connectToMediasoup()
}
}, 1600);
const streamSuccess = (stream) => {
console.log('[streamSuccess] device', device);
localVideo.srcObject = stream
console.log('stream', stream);
const videoTrack = stream.getVideoTracks()[0]
const audioTrack = stream.getAudioTracks()[0]
videoParams = {
track: videoTrack,
...videoParams
}
audioParams = {
track: audioTrack,
...audioParams
}
console.log('[streamSuccess] videoParams', videoParams, ' | audioParams', audioParams);
goConnect()
}
const getLocalStream = () => {
console.log('[getLocalStream]');
navigator.mediaDevices.getUserMedia({
audio: false,
audio: true,
video: {
width: {
min: 640,
max: 1920,
},
height: {
min: 400,
max: 1080,
}
qvga : { width: { ideal: 320 }, height: { ideal: 240 } },
vga : { width: { ideal: 640 }, height: { ideal: 480 } },
hd : { width: { ideal: 1280 }, height: { ideal: 720 } }
}
})
.then(streamSuccess)
.catch(error => {
console.log(error.message)
})
navigator.permissions.query(
{ name: 'microphone' }
).then((permissionStatus) =>{
console.log('🟨 [PERMISSION] permissionStatus', permissionStatus); // granted, denied, prompt
// It will block the code from execution and display "Permission denied" if we don't have microphone permissions
})
}
const goConnect = () => {
@ -167,7 +179,6 @@ const goCreateTransport = () => {
// server side to send/recive media
const createDevice = async () => {
try {
console.log('[createDevice]');
device = new mediasoupClient.Device()
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#device-load
@ -178,7 +189,8 @@ const createDevice = async () => {
})
console.log('Device RTP Capabilities', device.rtpCapabilities)
console.log('[createDevice] device', device);
// once the device loads, create transport
goCreateTransport()
@ -207,18 +219,20 @@ const getRtpCapabilities = () => {
}
const createSendTransport = () => {
console.log('[createSendTransport');
// see server's socket.on('createWebRtcTransport', sender?, ...)
// this is a call from Producer, so sender = true
socket.emit('createWebRtcTransport', { sender: true, callId }, ({ params }) => {
socket.emit('createWebRtcTransport', { sender: true, callId }, (value) => {
console.log(`[createWebRtcTransport] value: ${JSON.stringify(value)}`);
const params = value.params;
// The server sends back params needed
// to create Send Transport on the client side
if (params.error) {
console.log(params.error)
return
}
console.log(params)
// creates a new WebRTC Transport to send media
// based on the server's producer transport params
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#TransportOptions
@ -244,10 +258,10 @@ const createSendTransport = () => {
})
producerTransport.on('produce', async (parameters, callback, errback) => {
console.log(parameters)
console.log('[produce] parameters', parameters)
try {
// tell the server to create a Producer
// Tell the server to create a Producer
// with the following parameters and produce
// and expect back a server side producer id
// see server's socket.on('transport-produce', ...)
@ -270,20 +284,42 @@ const createSendTransport = () => {
}
const connectSendTransport = async () => {
// we now call produce() to instruct the producer transport
console.log('[connectSendTransport] producerTransport');
// We now call produce() to instruct the producer transport
// to send media to the Router
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#transport-produce
// this action will trigger the 'connect' and 'produce' events above
producer = await producerTransport.produce(params)
// Produce video
producerVideo = await producerTransport.produce(videoParams)
console.log('videoParams', videoParams);
console.log('producerVideo', producerVideo);
producer.on('trackended', () => {
producerVideo.on('trackended', () => {
console.log('track ended')
// close video track
})
})
producer.on('transportclose', () => {
producerVideo.on('transportclose', () => {
console.log('transport ended')
// close video track
})
// Produce audio
producerAudio = await producerTransport.produce(audioParams)
console.log('audioParams', audioParams);
console.log('producerAudio', producerAudio);
producerAudio.on('trackended', () => {
console.log('track ended')
// close audio track
})
producerAudio.on('transportclose', () => {
console.log('transport ended')
// close audio track
})
const answer = {
@ -294,7 +330,7 @@ const connectSendTransport = async () => {
origin_asset_type_name: ASSET_TYPE,
origin_asset_name: ASSET_NAME,
video_call_id: callId,
answer: 'accepted', // answer: 'rejected'
answer: 'accepted', // answer: accepted/rejected
};
console.log('SEND answer', answer);
@ -310,7 +346,7 @@ const connectSendTransport = async () => {
const createRecvTransport = async () => {
console.log('createRecvTransport');
// see server's socket.on('consume', sender?, ...)
// See server's socket.on('consume', sender?, ...)
// this is a call from Consumer, so sender = false
await socket.emit('createWebRtcTransport', { sender: false, callId }, ({ params }) => {
// The server sends back params needed
@ -320,15 +356,15 @@ const createRecvTransport = async () => {
return
}
console.log(params)
console.log('[createRecvTransport] params', params)
// creates a new WebRTC Transport to receive media
// Creates a new WebRTC Transport to receive media
// based on server's consumer transport params
// https://mediasoup.org/documentation/v3/mediasoup-client/api/#device-createRecvTransport
consumerTransport = device.createRecvTransport(params)
// https://mediasoup.org/documentation/v3/communication-between-client-and-server/#producing-media
// this event is raised when a first call to transport.produce() is made
// This event is raised when a first call to transport.produce() is made
// see connectRecvTransport() below
consumerTransport.on('connect', async ({ dtlsParameters }, callback, errback) => {
try {
@ -353,7 +389,8 @@ const resetCallSettings = () => {
localVideo.srcObject = null
remoteVideo.srcObject = null
consumer = null
producer = null
producerVideo = null
producerAudio = null
producerTransport = null
consumerTransport = null
device = undefined
@ -361,7 +398,7 @@ const resetCallSettings = () => {
const connectRecvTransport = async () => {
console.log('connectRecvTransport');
// for consumer, we need to tell the server first
// For consumer, we need to tell the server first
// to create a consumer based on the rtpCapabilities and consume
// if the router can consume, it will send back a set of params as below
await socket.emit('consume', {
@ -373,7 +410,7 @@ const connectRecvTransport = async () => {
return
}
// then consume with the local consumer transport
// Then consume with the local consumer transport
// which creates a consumer
consumer = await consumerTransport.consume({
id: params.id,
@ -416,6 +453,7 @@ const closeCall = () => {
resetCallSettings()
}
btnLocalVideo.addEventListener('click', getLocalStream)
btnRecvSendTransport.addEventListener('click', goConnect)
btnCloseCall.addEventListener('click', closeCall)