The Ascom IPBS2-A4A (requiring external aerials) has compact design, connects to IP-PBX via LAN and supports Power over Ethernet (PoE) for ease of installation. Therefore it requires no additional cabling to support telephony.
All wireless transmissions are encrypted and support cipher re-keying during calls to safeguard against radio eavesdropping. It features multiple channels with capacity for up to eight simultaneous voice calls, messaging; plus a dedicated alarm channel. Its built-in antenna has exceptional radio coverage, and there is even provision to connect external antennae to improve coverage or extend range.