A: Here is what is recommended for the ShoreTel IP 265 Telephone: Instead of the AWH-55, you want to use the Plantronics CS55 ($225.00). Physically, it looks similar to the AWH-55 but it works on a different frequency (1.9 GHz) that will not interfere with your wireless Internet connections in the office and it has up to 10 hours of talk time. To connect it to your phone without having to use a handset lifter, you will need the RD-1 adapter cable (#78887-01, $24.95) which allows for remote call answer/end.