RTP unclosed socket warning

[kwnaidoo]

Firstly excellent library! I have been trying out the v1.6.8 with a SIP account, the call is picked up correctly but as soon as I try to fetch the audio, I keep getting:

ResourceWarning: Enable tracemalloc to get the object allocation traceback
pyVoIP/RTP.py:341: ResourceWarning: unclosed <socket.socket fd=5, family=AddressFamily.AF_INET, type=SocketKind.SOCK_DGRAM, proto=0, laddr=('0.0.0.0', 17372)>
  self.sout = self.sin

def answer(call):
    try:
      call.answer()
      while call.state == CallState.ANSWERED:
         audio = call.read_audio()
         print(audio)
      call.hangup()
    except InvalidStateError:
      pass

I have also tried transcribing the audio using Assembly AI instead of just printing the raw bytes, same issue.

I took a peek into the library on line 341, but not too familiar with RTP so not sure what the issue is.

    def start(self) -> None:
        self.sin = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        # Some systems just reply to the port they receive from instead of
        # listening to the SDP.
        self.sout = self.sin
        self.sin.bind((self.inIP, self.inPort))
        self.sin.setblocking(False)

        r = Timer(0, self.recv)
        r.name = "RTP Receiver"
        r.start()
        t = Timer(0, self.trans)
        t.name = "RTP Transmitter"
        t.start()

Any suggestions?