Convert an Audio Call to Video Call (Update SDP / Re-invite)

[MuneebAhmed568]

Hey, I hope you are doing good.

I am trying to Convert an already Established Audio call to Video Call but getting error on Ice-Candicate
I am using SIPJS : 0.21.2

Error

I can't identify why it's not working.
I also tried Simple Audio Call , Audio and Video call and even screen share they are working Just fine, error occurs when I try to update SDP.

CODE

userAgentOptions = {
  authorizationPassword: userPassword.value,
  authorizationUsername: userID.value,
  transportOptions : transportOptionss,
  uri: uriUserAgent,
  delegate: userDelegate,
  contactName: userID.value,
  displayName: userID.value,
  viaHost: viaHost,
  userAgentString: userID.value,
  sessionDescriptionHandlerFactoryOptions: {
    iceCheckingTimeout : 50,
    peerConnectionConfiguration : {
      iceServers: [
        // { 
        //   urls: "stun:stun.l.google.com:19302" 
        // },
        {
          urls: "stun:stun.relay.metered.ca:80",
        }
      ], 
      // iceTransportPolicy : "all",
      // bundlePolicy : "max-compat"
      alwaysAcquireMediaFirst : true,
      
      iceCandidatePoolSize:0,
    },
    constraints: {
      audio: true,
      video: true
    },
  },
  logLevel: 'debug'
};

userAgent = new UserAgent(userAgentOptions);
inviter = new Inviter(userAgent, destination, {
  sessionDescriptionHandlerOptions: {
    constraints: { audio: true, video: false }
  }
});
outgoingSession = inviter;
outgoingSession.invite({requestDelegate : OutgoingRequestDelegate})
//FOR Re-Invite after call state. = Established
outgoingSession.invite({
    sessionDescriptionHandlerOptions: {
      constraints: { 
        // audio: true, 
        video: true 
      }
    },
    requestDelegate: OutgoingRequestDelegate
  })

[MuneebAhmed568]

Nevermind Solved it myself, Just needed to add offerOptions.iceRestart : true.
This option is not available by default so I have to manually add it

export interface SessionDescriptionHandlerOptions {
  constraints?: object;
  offerOptions?: RTCOfferOptions;  // added this manually 
  
}

sessionDescriptionHandlerOptions: {
        constraints: { 
          audio: true, 
          video: true 
        },
        offerOptions : {
          iceRestart : true
        }
      },

Rest of code is same as above mentioned in question