Siemens optiPoint 500 entry Reference Manual page 19

ISDN
(1x
5
mno tuv
6 8
mno tuv 1
6 8
mno tuv def
6 8 3
tuv 0
8
2x)
jkl tuv
5 8
tuv mno
8 6
tuv mno
8 6
( ... )
wxyz
0
9
def
3
def
3
def
3
ghi wxyz 1
4 9
ghi abc
4 2
tuv ghi
8 4
tuv 0
8
jkl 1
5