I need python script that can sniff and decode SIP messages in order to check their correctness. As a base for this script I use python-libpcap library for packets sniffing. I can catch UDP packet and extract SIP payload from it, but I don't know how to decode it. Does python has any libraries for packets decoding? I've found only dpkt, but as I understood it can't decode SIP. If there are no such libraries how can I do this stuff by hands? Thank you in advance! Continue reading...
