MOCET IP3021A - Manual (Page 55)

Page 55
MOCET IP3022 SOHO IP Deskphone User Guide
To switch between the two lines, press the Line Key (1001) button on the right hand side
of the LCD, which calls to number3001 to unhold the call.
By the steps as above, you can make up to three concurrent calls.
3.20. Using Multiple Calls
Each line of service in the phone can support up to two calls simultaneously. It allows you
to place one caller on hold and talk to the other person in another call on the same line.
For example, the following screen shows you line1001 has one active call with
number3001.
You can make a new call on the same line, just press NewCl soft-key to call another party.