I'm using Asterisk
to registry several DDI's to a sip proxy (pipecall.com). Everything works fine
apart from several times a day my firewall (zywall70) reports a UDP port scan
attack from the pipecall sip proxy. I can't seem to work out why this should be.
All I could think was that the sip registry was expiring and causing some
strange probing from the proxy, is it possible to alter the expiry on a sip
channel or does anybody have any other ideas?
Thanks,
Chris
