with Hands Free, without Hands Free - with Caller ID, without Caller ID - with Loudspeakers, without Loudspeakers - without SMS Function
ProClear and crisp voice quality
ContraNo answering machine
ProFree Calls, No need to be with PC of Laptop
ContraWorks with Windows XP or later
ProWorks with Vista also
ContraNo answering machine, only works with windows mess...