Generally, the phone directory can be transferred between Alessi, S1 and C2 handsets only when they are registered to "C" or "S" type base stations. The same appleis to Gigaset 4000 Comfort and Micro Handsets that are registered to these base stations.
Transferring Telefone directories to or from a C1 handset is not possible.
If a C2 Handset is registered to a Gigaset 4000 or older base station, then the phone directory cannot be sent or received.
(Applies to Comfort Bases: Gigaset 303X isdn+analog; Gigaset 307X isdn; Gigaset 403X; Gigaset 413X isdn; Gigaset 417X isdn)
For the Alessi and S1 handset the limitation does not apply.