Siemens Optipoint 500 Basic Telephone Handset

optiPoint 500 basic:

• 12 feature keys with LEDs
• Open listening
• Integrated USB 1.1 interface
• 1 adapter port
• 1 interface for max. 2 key modules: – optiPoint application module – optiPoint key module – optiPoint signature module
• Alphanumeric LCD tiltable display with 2 lines (24 characters per line)
• 3 dialog keys for easy menu navigation and selection:Yes, Back and Next keys
• 2 keys (plus, minus) for setting ringer volume, ringer pitch, alerting tone and display contrast