Help: Call initiation and recording user voice

[corusm]

Hi there, I am new to the VoIP topic and these things are unclear to me:

1. Recording Audio
I try to record voice of a person that calls:

    bytesArray = bytearray(b'')
    time.sleep(3)
    while call.state == CallState.ANSWERED:
        bytesString = call.read_audio(length=20, blocking=True)
        print(bytesString)
        bytesArray.extend(bytearray(bytesString))

When using blocking=False I just get empty bytes and if I use blocking=True nothing gets recorded. I use sipgate as PBX. Do I make an obvious mistake and how can I get my code working? I use python version 3.10. Is it possible that you publish example code?

2. Calling
I try to call a german phone number 0176123123123 but I get

TODO: Add 500 Error on Receiving SIP Response
Traceback (most recent call last):
  File "/Users/user/dev/phone-call/sipbot.py", line 54, in <module>
    phone.call("0176XXXXXXX")
  File "/Users/user/opt/miniconda3/envs/voice/lib/python3.10/site-packages/pyVoIP/VoIP.py", line 679, in call
    request, call_id, sess_id = self.sip.invite(
  File "/Users/user/opt/miniconda3/envs/voice/lib/python3.10/site-packages/pyVoIP/SIP.py", line 1597, in invite
    response = SIPMessage(self.s.recv(8192))
  File "/Users/user/opt/miniconda3/envs/voice/lib/python3.10/site-packages/pyVoIP/SIP.py", line 345, in __init__
    self.parse(data)
  File "/Users/user/opt/miniconda3/envs/voice/lib/python3.10/site-packages/pyVoIP/SIP.py", line 381, in parse
    raise SIPParseError(
pyVoIP.SIP.SIPParseError: Unable to decipher SIP request: 

How must I change my code or are there example code snippets?

[xyc0815]

@corusm It is possible that you send us logs from the request and response. In the calling case. It's looks like, that you get an not supported SIP format.

        if check in self.SIPCompatibleVersions:
            self.type = SIPMessageType.RESPONSE
            self.parseSIPResponse(data)
        elif check in self.SIPCompatibleMethods:
            self.type = SIPMessageType.MESSAGE
            self.parseSIPMessage(data)
        else:
            raise SIPParseError(
                "Unable to decipher SIP request: " + str(heading, "utf8")
            )

This is the part, where the error starts.

For the recording part, you may have a look her #80