Aastra Telecom 55I User Manual

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Softkey/Programmable Key/Feature Key/Expansion Module Key Parameters
A-136
41-001160-00, Release 2.1, Rev 04  
IP Phone Administrator Guide
Appendix A
Softkey/Programmable Key/Feature Key/
Expansion Module Key Parameters
This section provides the softkey, programmable key, feature key, and expansion 
module key parameters you can configure on the IP phones. The following table 
provides the number of keys you can configure for each model phone and 
expansion module, 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 53i, 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 55i, 57i, and 57i CT phones.
IP 
Phone 
Model
Softkeys 
Expansion Module 
Keys
Programmable 
Keys 
Lines 
Available
Handset 
Keys 
Available
53i
-
36 to 108*
(Model 536M)
6
(Up to 4 
functions)
9
-
55i
6 Bottom Keys
(Up to 20 
functions)
36 to 108*
(Model 536M)
60 to 180**
(Model 560M)
6 Top Keys
(Up to 6 
functions)
9
-
57i
12 Top and 
Bottom Softkeys
(Up to 10 
functions on top 
keys; Up to 20 
functions on 
bottom keys)
36 to 108*
(Model 536M)
60 to 180**
(Model 560M)
-
9
-
57i CT
12 Top and 
Bottom Softkeys
(Up to 10 
functions on top 
keys; Up to 20 
functions on 
bottom keys)
36 to 108* on Base 
Station
60 to 180** on Base 
Station
(Model 560M)
-
9
15
Note: 
When entering definitions for softkeys, the “#” sign must be 
enclosed in quotes.