There are two main dialing methods for the IPerVoice System firstly Numeric this is popular in the UK market and the Call Module will display the words :-
Enter Number then Press Bell this will then dial the numerical number of the apartment for example 15.
This is set on the server configuration as such
The second method which is more popular in Continental Europe is scrolling to the name of the resident and pressing bell. to enable this dialing method you need to set Topological dialing. also you will be able to dial the resident by dialing the who Topological code for example 01010203. to use this method set the server as such