Operational Features
41-001160-00, Release 2.1, Rev 04
5-93
Configuring Operational Features
Operational IP Phone Features
Softkeys/Programmable Keys/Feature Keys/Expansion Module Keys
You can configure the softkeys, programmable keys (53i has programmable keys
only), feature keys, and expansion module keys to perform specific functions on
the IP phones.
Softkeys (55i, 57i, 57i CT)
The 55i IP phone has 6 softkeys you can configure to perform specific functions,
The 57i and 57i CT IP phones have 12 softkeys you can configure. With up to 3
Expansion Modules attached to the phone, you can get an additional 72 softkeys
to configure (not all functions apply to Expansion Module softkeys). The
following table provides the number of softkeys you can configure, and the
number of lines available for each type of phone.
*The 536M expansion module consists of 36 softkeys. You can have up to 3 expansion modules on an IP
phone totaling 108 softkeys. Valid for 55i, 57i, and 57i CT phones.
**The 560M expansion module consists of 60 softkeys. You can have up to 3 expansion modules on an IP
phone totaling 180 softkeys. Valid for 57i and 57i CT phones only.
Note:
When entering definitions for softkeys in the configuration files,
the “#” sign must be enclosed in quotes.
IP Phone
Model
Softkeys
Expansion Module
Keys
Programmable
Keys
Lines
Available
Handset
Keys
Available
55i
6
36 to 108*
(Model 536M)
60 to 180**
(Model 560M)
6
9
-
57i
12
36 to 108*
(Model 536M)
60 to 180**
(Model 560M)
-
9
-
57i CT
12
36 to 108* on Base
Station
(Model 536M)
60 to 180** on Base
Station
(Model 560M)
-
9
15
