Personalizing your phone 
112 Aastra 5370/Aastra 5370ip
eud-1281/1.3 – R3.0 – 04.2013
Formulating functions
This section explains how to activate an individual function, for example call for-
warding unconditional, with the aid of function commands and function codes 
and how to assign it to a key.
Function commands, function codes
You can use the predefined selection to allocate functions to a configurable key (see 
chapter "Store a function under a key – function key", page 104). You can also write 
your own functions using function commands and function codes (select Free config-
urable function). The function commands are listed here; the function codes can be 
found in the User's Guide "User’s Guide Function Codes" on the Aastra DocFinder.
You can use function commands to define a function to suit your personal require-
ments. A function can consist of one or more function commands, function codes, 
and the phone number.
The following function commands are available:
"A" Seize line with highest priority
"I" Seize line
"H" Seize line in hands-free mode
"X" Disconnect
"P" Pause 1 second before the next operation
"Lxx" Seize line xx (Line keys)
"N" Use the phone number entered in call preparation
"." Control key function (up-circuit system)
"Z" Activate/deactivate DTMF mode
"R" Use the phone number last dialled
"Y" Disconnect and reseize the line
Other formulation examples:
"IR"
Seize line ("I"),
Dial phone number last dialled ("R")
"I201" Seize line ("I") and dial phone number 201 
"I*21201X"
Seize line ("I"), 
activate call forwarding unconditional ("*21") to phone number 201, 
disconnect ("X")