I have had no end of trouble with 4.41b down here in Australia with SIP doing exactly what you described. The only way I could get it to stay conencted was to drop back to 4.30. Something changed in the 4.4 software that seems to cause instability on some ISP/VSP's.

We have just been issued a newer software down here specifically to fix this problem (T4.41c) that so far seems to be doing the job really well.

Bottom line, I dont think it's you!


Cheers, Dave.
Eco Communications
Selling and installing Ericsson BP150/50/250 from 1996 to 2005
Samsung selling and installing since 2000
Toshiba selling and installing since 2004
Microsoft NT and SQL certified (10 years ago...)