Off-The-HookSource: Centrol, Inc.
Off-The-Hook is a retrofit product for existing phone systems that currently offer KNOCK THE PHONE OFF HOOK. Off-The-Hook will electronically take the phone off hook when activated by a wireless necklace pendant transmitter.
Centrol, Inc., 303 South High Street, Suite D, West Chester, PA 19382. Tel: 610-738-6992; Fax: 610-738-6993.