help | 4 Calling with Enreach Contact Desktop | Use of two simultaneous softphone calls | Hold
Hold
Use the Hold function to put the currently active call on hold, for example if you want to make an enquiry or start a second call. When a call is put on hold, your conversation partner hears music on hold.
To put a call on hold 
You are having a telephone conversation on a line.
1 Click on .
*The Dialer opens.
2 Click on the line with the active call .
*The call will be placed on hold, and your conversation partner will hear music on hold. The line symbol turns red .
Click once again on this line to re-activate a connection on hold.