[asterisk-users] A little OT but need an opinion on Aastra 57i CT

[John Millican]

Hello All,
I have a need for a wireless solution and have been looking at the
Aastra 57i CT phone that have the wireless handset with them.  Aastra
says they will cover "up to 300,000 square feet".
I am finding this hard to accept.  I was also wondering about the
"secure WDCT cordless technology"  Could this be a form of DECT?
Any one using these that can shed some lite?
Thanks.
JohnM