OT: Dect 6.0 and 802.11 Interference

Does anyone have any experience with DECT 6.0 Cordless Digital phones
and their performance in a 802.11 wireless network environment?

A google of DECT 6.0 technology turns up nothing but phones sales
information, nothing on the performance of the technology. It operates
on 1.9 gHZ, I believe, and I have read that power consumption is
high...i.e. short battery life.

Any insight greatly appreciated.

Pegleg