Place a Call from an Expansion Module

You can place a call using the line keys on expansion modules connected to supported VVX business IP phones.

VVX EM50 expansion modules are supported on VVX 450 business IP phones only.


  • Do one of the following:
    • Press a line key corresponding to an available line and dial the number.
    • Press the line key of the assigned favorite you want to call.
    The call is placed and is displayed on your phone's screen.