PyVoIP is a pure python VoIP/SIP/RTP library. Currently, it supports PCMA, PCMU, and telephone-event.
Please note this is still in development.
This library does not depend on a sound library, i.e. you can use any sound library that can handle linear sound data i.e. pyaudio or even wave. Keep in mind PCMU/PCMA only supports 8000Hz, 1 channel, 8 bit, audio.
Simply put pyVoIP into your site-packages folder.
This basic code will simple make a phone that will automatically answer then hang up.
from pyVoIP.VoIP import VoIPPhone, InvalidStateError
def answer(call): #This will be your callback function for when you receive a phone call.
try:
call.answer()
call.hangup()
except InvalidStateError:
pass
if __name__=='__main__':
phone=VoIPPhone(<SIP Server IP>, <SIP Server Port>, <SIP Server Username>, <SIP Server Password>, callCallback=answer, myIP=<Your computer's local IP>, sipPort=<Port to use for SIP (int, default 5060)>, rtpPortLow=<low end of the RTP Port Range>, rtpPortHigh=<high end of the RTP Port Range>)
phone.start()
input('Press enter to disable the phone')
phone.stop()