Yes, you may be able to change phones. I haven't researched them, but a repeater should work well.
I think I'd have checked this out
before I canceled my working service.
My wife wanted to cancel our landline. I compromised with changing it to the cheapest setting. I'm allowed 25 outbound calls a month and unlimited inbound.
Now I know 911 will work if I ever need it.
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten