It will not work with other models of Gigaset. Gigaset A550 Expansion Handset. This handset will not operate independently. It has to be paired with a compatible base already up and running. In very good condition.
Siemens Gigaset A550 A550A A550H A550HX Cradle Charger Charging Base
Siemens Gigaset A510H Digital Cordless Phone Additional Handset A510A A510
Siemens Gigaset AL285 Digital Cordless Telephone Answering Machine Only Black
Siemens Gigaset A400 Digital Cordless Phone Answering Machine Black with Adapter
Siemens Gigaset S455 Digital Cordless Phone Answering Machine Only with Adapter
Siemens Gigaset A510. Digital Cordless Phone Additional Handset A510A A510
