The twinning menu is only available if you have been configured by the system administrator to be able to use mobile twinning.
Setting a button to the Twinning function is recommended. The button allows you to transfer calls to your twinning destination, reclaim twinned calls, and quickly access the twinning menu.
Procedure
Press the Features soft key if shown.
To do this during a call, press the PHONE key and then press Features.
Use the cursor keys to select Forward.
Use the cursor keys to select Mobile Twinning.
If no twinning number has been set yet, select Destination and click Edit. Enter the number required and press Select.