Valcom Clarity S-521B 2 x 1 Lay-In Ceiling Speaker w/Backbox 25-70 volt, Stock# S-521B electrical switch It can be used with

It can be used with hand or hydraulic drivers

Planet Smart Discovery utility automatically finds Planet devices on the network

Inter-Tel Encore CX Systems

The system uses a web based configuration & status indication for an easy phone management which uses a standard SIP phone systems reducing long distance and inter office call costs

Valcom Clarity S-521B 2 x 1 Lay-In Ceiling Speaker w/Backbox 25-70 volt, Stock# S-521B electrical switch It can be used withThe well made Valcom Clarity S 521B 2 x 1 Lay In Ceiling Speaker w Backbox 25 70 volt is a lay in ceiling speaker with a backbox 1 x 2 . 25 70 Volt operation Replaces half of a 2 x 2 tile. Features: Valcom ceiling speaker 1' x 2' . 25 70 Volt operation Replaces half of a 2' x 2' tile Inconspicuous front accessible rotary tap volume control Integral backbox with 3 hour burn rating Excellent sound quality Durable white acrylic baked enamel finish Built