Configurable Websocket Timeout

[jschwinn]

Feature Request

I've added a configurable websocket timeout to class WebSocketInterface as a constructor param with a default value of 0. When this param is defined and is a positive integer, the constructor sets a connect_timeout in milliseconds that will limit the time required to failover to another socket instead of waiting for the OS connection timeout.

Example:

  const socket1 = new JsSIP.WebSocketInterface("wss://host01.domain.com:443", 5000);
  const socket2 = new JsSIP.WebSocketInterface("wss://host02.domain.com:443", 5000);

  var contactURI = `sip:${inputUsername}@192.168.99.101;transport=ws`;
  
  const configuration = {
    sockets: [socket1, socket2],
    uri: aor,
    password: ephemeralPassword.password,
    authorization_user: ephemeralPassword.username,
    display_name: inputUsername,
    session_timers: false,
    connection_recovery_max_interval: 30,
    connection_recovery_min_interval: 2,
    register_expires: 3600,
    contact_uri: contactURI,
  };

You can view the change here:
jschwinn@f043051

Please let me know if you would consider accepting this change.

Thanks
Jamie Schwinn