AASTRA 4425 IP Vision (SIP) for MX-ONE User Guide - Manual (Page 47)

Call List
Dialog 4425 IP Vision 48
Call List
The phone stores a Call List with 50 phone numbers that includes
missed calls (if supported by the network), incoming calls, outgoing
calls and answered calls.
Note: The list is cleared if a power failure occurs, if another
user (extension number) logs on to the same phone or if you
reset the phone.
To access the Call List
Å
Select CallList in the top menu (see display),
The Call List is displayed, see example.
or
n Missed press (see display).
n = Number of missed calls.