Your question about Siemens Optiset E Advance Conference

The Siemens Optiset E Advance plus conference Phone offers following features: New extended handsfree facility of outstanding quality for using in phone- conferences.

• Dialogue buttons
• Two-way optiVoice speakerphone
• Display (with 2 lines x 24 characters)
• OptiGuide navigation keys
• Two Easy-Add adapter slots
• 12 feature keys with LEDs
• Supports up to 4x Key module
• Two volume control keys
• Hicom 100E, 150E, 300/E
• Hipath 3350, 3550, 3750, etc.