I have an Obihai202 about 2 years old, just upgraded firmware to latest (did not help)
I have Callcentric, and I've been getting SIP Spam calls.
I've read that the solution is to change {ph2} to {>17771234567:ph2} (obviously not my CallCentric acct number, just for instance)
What happens is I replace {ph2} with {>17771234567:ph2}, hit "Submit" then Reboot...
But after I reboot I again see {ph2}!
Any suggestions or alternative methods to avoid SIP Spam?