Electronically connects your DECT headset base to your telephoneEnables remote operation. answer/end calls. for wireless headset use with various phones. thus eliminating the need for a mechanical handset lifterFor use with Siemens/Unify OpenStage 30. 40. 60. 80. OptiPoint Basic. Std. Adv. Eco 410. 420. 500. 600 phone models and Aastra /Mitel 5370. 5370ip. 5380. 5380ip. 6739i. 6771. 6773. 6773ip. 6775. 6775ip. 7434ip. 7444ip. and *6735i. *6737i. *6753i. *6755i. *6757i phone models
