Reversecharge

I get the reversecharge warning every time, and at the same time that sipgate.co.uk sends out its
Ext. 1xxxxxxe0: Friendly Scanner from 217.10.79.23;branch=
Sipgate uses the Friendly Scanner in place of NAT / ICE /TURN or something - its as some sort of keepalive so that IPv6 will work past your router.
Sipgate mentioned this in a lecture video which had a link on TW and perhaps FB.
regards ozz