Greeting the caller, reporting that all the operators are busy at the moment, plays music during waiting in queue, requests to stay on the line as the next available operator will pick up exactly your call.
Plantronics Calisto P835M is USB speakerphone optimized for work with Microsoft Office Communicator and Microsoft Lync. Calisto P835M is the first speaker in UC product family line, which unifies the possibility of simple call management and simultaneous work with cell phone, computer and analog telephone line.