Solution
1. Press [Menu].
2. Press [Left cursor] or [Right cursor] to select [FAX SETTINGS], and then press [OK].
3. Press [Left cursor] or [Right cursor] to select [USER SETTINGS], and then press [OK].
4. Press [Left cursor] or [Right cursor] to select [TEL LINE SETTINGS], and then press [OK].
5. Press [Left cursor] or [Right cursor] to select [TEL LINE TYPE], and then press [OK].
6. Press [Left cursor] or [Right cursor] to select [TOUCH TONE] or [ROTARY PULSE], and then press [OK].
7. Press [Stop/Reset] to return to the standby display.
