INTRODUCTION
© Polycom, Inc. 3 VORTEX EF2201 Reference Manual
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FEATURES AND BENEFITS
• Telephone hybrid with noise cancellation for adding phone calls to conference
• Fully digital connection to the EF2200 series products with EF Bus -- does not
require an analog input/output.
• Country specific telephone configuration settings
• Selectable auto-hang-up via loop drop and/or call progress tone detection
• 5-band parametric EQ on the phone input and output
• Automatic gain control on receive telephone audio path for consistent receive
audio
• Compression/limiting on transmit telephone audio path
• User-set entry and exit tones give you the option to hear a pleasant tone when
callers enter or leave the conference
• Conference up to 8 callers
• Built-in DTMF dialer allows users to dial without the use of a separate telephone
• Adjustable dial tone and DTMF levels
• RS-232, EF Bus, logic interface, and front panel LCD for control
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