Aastra Telecom C53I User Guide

Operational Features

41-001160-00, Rev 01  Release 2.0

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Operational IP Phone Features

The IP phones allow you to lock or unlock programmable keys, softkeys, hard 
keys, cordless handset keys, and expansion keys (for expansion modules). When 
key locking is enabled, the phone uses the server settings and ignores any 
previous local configuration. A user cannot override the configuration of a locked 
key.

You can lock and unlock keys using the configuration files only. When viewing 
the locked key via the Aastra Web UI, the key is grayed out (disabled) and cannot 
be changed. Locking is dynamic for XML pushes.

You use the following “locking” parameters to lock the softkeys and 
programmable keys on the 53i, 55i, 57i, and 57i CT. The locking parameters 
impact existing softkey and programmable key parameters as shown in the table 
below.

softkeyN type

softkeyN label

softkeyN value

softkeyN line

softkeyN states

55i

57i

57i CT

topsoftkeyN type

topsoftkeyN label

topsoftkeyN value

topsoftkeyN line

57i

57i CT

prgkeyN type

prgkeyN value

prgkeyN line

53i

55i

featurekeyN type

featurekeyN label

57i CT

expmodX keyN type

expmodX keyN value

expmodX keyN line

5-series expansion modules

The 53i IP phone prevents users from setting a speed dial key via 

the Phone UI on a key that has been locked.