True, it is always advisable to read the instructions for use on the net before buying. Yet I had read, but I did not save this important detail. On all my previous phones, we had to save contacts on all handsets (3 for me) tedious. The more of these phones is that once saved contacts in a combined, some send a copy of all or only some contacts to one or all handsets. This possibility is really handy. The free hand is very powerful.