2010/10/28 Sergey Okhapkin sos@sokhapkin.dyndns.org:
This logging is important to me to support customers. SIP ALG in routers often breaks Via line :-(
If it helps, I coded an utility to check if a router has SIP-ALG enabled:
http://dev.sipdoc.net/projects/sip-stuff/wiki/SIP-ALG-Detector