urmet domus IPerCom 3.0.0 System Technical Manual For The Installer page 234

The Contacts tab instead remains available on each stair node with 2Voice Gateway, as on these nodes it is
possible to add other IPerCom devices (for example one or more MAX video door phones on which it may
be necessary to create a address book).
On stair 1 of block 1, instead, the Contacts tab is normally present up to the apartment node:
Figure 284: Tab "Address books" present on stair without gateway
Similarly, it is not possible to add a switchboard contact or a Call Module or Entry Panel to carry out the
auto insertion on a 2Voice audio / video apartment station.
If the dental practice contact (or other) is added on the site node with the "Public" option selected, this is
not propagated on the stair nodes with gateways and its lower nodes.
In order that 2Voice apartment stations can call the dental practice, they must call the switchboard, the
switchboard call the dental practice and then make a call transfer.
In general, IPerCom and 2Voice devices do not always behave in the same way with regard to the most
important services offered by the IPerCom system.
In Appendix B and Appendix C there are 2 tables that summarize these differences in performance, in detail
in Appendix B differences in performance between an audio / video apartment station IPerCom and one
2Voice are listed while in Appendix C differences in performance compared to Switchboard are listed.
234 MT124-032M