Aastra 480i Administrator's Manual page 238

# PRGKEY LINE:
#
#
#
#
# Speed Dials
prgkey1 type: speeddial
prgkey1 value: *8
prgkey2 type: speeddial
prgkey2 value: *69
# DND Key
prgkey3 type: dnd
# Line appearance
prgkey4 type: line
prgkey4 line: 5
# blf
prgkey5 type: blf
prgkey5 value: 4559
prgkey5 line: 1
# list
prgkey6 type: list
prgkey7 type: list
230 IP Phone SIP Admin Guide
This is line associated with the prgkey. For line
prgkeys the value must be between 4 and 9 (1 - 3
are already hardcoded as the L1, L2 and L3 hard
key line/call appearances).
This parameter is not used for the 9112i