Posted by a reviewer on Amazon

It allows us to train someone new on the phone by having them listen in and the customer not hearing if they have to ask a question

Posted by a reviewer on Amazon

Used it on our ip phone and simply plugged this into the headset outlet and plugged both headsets into this

Posted by a reviewer on Amazon

The mute button didnt work on all of them but that wasnt an issue as they were just simply listening

Posted by a reviewer on Amazon

It has two independent volume buttons and two independent mute buttons but one of the mute buttons did not seem to work though i did not spend much time testing it

Posted by a reviewer on Amazon

The mute button allows the new employee to listen in and ask the veteran employee questions without the customer hearing

Posted by a reviewer on Amazon

Additionally the veteran employee can be muted and give guidance without being heard when the new employee is on a call

Posted by a reviewer on Amazon

Bexause of the mute buttons you do not need pushtotalk handsets

Posted by a reviewer on Amazon

There are no volume isssues we can use both headsets at the same time and we can not hear any reduction in volume at all