Valcom V-9936A Audible Ringer UnitThe Valcom V 9936A Audible Ringer Unit is a compact, reliable solution designed to bring clear, immediate call notification to multi line office telephony. Specifically a Six Line CO Audible Ring Unit, its built to work with Electronic Key Systems and PABX telephone configurations, delivering dependable audible alerts across multiple lines. This unit is engineered for fast, straightforward deployment in busy environments where every rung of the call