My probelm is, when I used Spa122(ATA) from Cisco(I put it after the router,"bridge" mode) I didn't get any 100, 1001 number calling in. And at night time, I simply set a "deny access" to Spa122 through dd-wrt setting on my dlink-615(e3) Router. Then there was no dial tone on the phone and noboday can call in and I slept well.
After I switched to OBI200, I found out there was lots of 100 or 1001 number calling in day and night. And at night time, althought I set a "deny access" to OBI200 through dd-wrt on my dlink-615(e3) Router, as I did to the Spa122, the OBI200 still got dial tone. The 100 and 1001 number still can ring my phone. I tried to use my cellphone to call my OBI200 home phone, I found that ,althought, when "denied access", it can't make a sucessful phone call but the ring still sounds.
So, the dd-wrt "deny access" setting worked on the spa122 but not totally on Obi200.
Then I switch back to Spa122, everything became normal again(all the setup on my dlink615(dd-wrt) was the same.), I can finally sleep!!!
I know that the new firmware of obi200 came with the option "X_EnforceRequestUserID", it might solve the "Ghost call" problem. But I still want the "deny access" to work on Obi200, in case other number might call in at night.
And my anther suggestion will be, would it be nice if we can set a timer to automatically turn on "do not disturb" at night and turn it off at daytime. I think a lot of people will like that idea, because most of us want a nice sleep at night. The phamton number bother us more at night than at daytime and we don't want to dial"*78" manually every night.