Add Options Support
Many issues have come up from options not being supported, despite my gripes about servers ignoring that it is clearly not in the Allow header, we will be adding Options to 2.0.
RFC 3261 Section 11
All UAs MUST support the OPTIONS method.
As I was.
This is now added to 2.0-dev. I would appreciate it if people could test out this feature and comment here if it is not working. My setup does not generate any OPTIONS requests to test it.
It looks like you're calling gen_busy method incorrectly.
https://github.com/tayler6000/pyVoIP/blob/de9d9c49a3ad6faafa61e40627f329c2d62b7804/pyVoIP/SIP.py#L1403