Siemens optiPoint 410 economy User Manual page 107

Parameters for "Selected dialing"
Enter the phone number for direct inward dialing.
page 101
Ringer Volume
Setting the ringer volume.
• Minimum value: 1 (quiet)
• Maximum value: 5 (loud)
• Default value: 3
page 103
page 31
page 62
Web Interface
107