FMC
Initiating a Call to an internal destination (on an External Phone)
Call Through number > Destination number
Call Through number
External number defined for Call Through on the PBX
Destination number
Internal phone to be called
Internal number of the group or user
* Further help under Fixed Mobile Convergence (FMC)
Initiating a Call to an external destination (on an External Phone)
Call Through number > PIN > * > Destination number
Call Through number
External number defined for Call Through on the PBX
PIN
user PIN
Destination number
External phone to be called
External number
Additional information
#    Destination number accelerates the dialling
* Further help under Fixed Mobile Convergence (FMC)