This auction is for (1) Brand New - CallTel SMS Monaural Over-The-Head Headset with a non standard RJ45 modular plug for Siemens and Funkwerk Telephones with built-in headset port. Siemens OpenStage 40, OpenStage 60, OpenStage 80, Optipoint 410 with acoustic adaptor, Optipoint 420 with acoustic adaptor, Optipoint 500 with acoustic adaptor, Optipoint 600 with acoustic adaptor Siemens Siemens Optipoint 410 with acoustic adapter, Siemens Optipoint 420 with acoustic adapter, Siemens Optipoint 500 with acoustic adapter, Siemens Optipoint 600 with acoustic adapter, Siemens OpenStage 40, Siemens OpenStage 60, Siemens OpenStage 80 T-Com Comfort Pro 100, Comfort Pro 300, Comfort Pro 300 IP, Comfort Pro 500, Comfort Pro 500 IP, F20, F30, F40, F50, F640, F660, F680, F31IP, L420s, F41 IP, L440 Buyer.
