line.addressName is a string property containing the username you are using on this connection. Your username is the unique address you can be found at.
Usually line.addressName is the same as wrtc.addressName, but some servers may change it, see example below.
String containing your username / SIP address.
Same as wrtc.addressName
If your wrtc.addressName is "john.doe" the RTCgate server may change it to "john.doe@company.com"
Then: