2017-03-01 15:48 GMT+01:00 Sergey Basov sergey.v.basov@gmail.com:
2017-03-01 15:57 GMT+02:00 Daniel-Constantin Mierla miconda@gmail.com:
If yes, this is not a valid SIP message, because it lacks mandatory headers such as call-id, cseq, from/to.
Yes it is without any headers...
So is not a valid SIP message