Siemens Hicom 150 E User Manual page 26

System Speed Dialing
4.
5.
26
Enter the complete external station number with
the external code, such as 0 or 9, or a trunk access
code, such as 801 (up to 31 digits).
You can use the Number redial key to program a
dial pause between two digits.
The # key enables subsequent digits to be trans-
mitted as DTMF tones.
Correction: Delete the last character entered (on
optiset E memory only).
Confirm the station number.