Voice and Data applications are supported by the VoIP expansion base, which supports 2 voice lines and an Ethernet port, thus providing services to standard, RJ-11 equipped telephone instruments. Battery backup can also be provided, where applicable, and uses simple AA rechargeable NiMH cells
The VoIP expansion base is fully managed by Airspan's base stations and VoiceMAX solution to ensure a fully transparent, carrier-class voice service.