The Vortex EF2201 links directly to an analog (PSTN) telephone line, connecting outside callers to your meeting. In addition to providing crystal-clear telephone audio to all participants, the Vortex EF2201 significantly reduces background noise on the phone line, keeping unwanted sounds from interfering with your conference. As the next generation of digital hybrid telephone interfaces, the Vortex EF2201 interfaces with other Vortex products through a digital expansion bus.

Telephony signals are communicated with a Vortex EF2280 over the digital P-bus channel of the EF Bus, without the need for analog input or output on the EF2280.The EF2201 can be controlled via RS232, Vortex Expansion bus, and front panel controls. Additional features are audible ring indications, user-configurable entry and exit tones, up to 256 speed dial memories, and controllable levels of DTMF and dial tone signals. The full cross-point matrix allows users to determine how the input and output signals are sent to and from the telephony interface. Settings are configured with Conference Composer software (provided), and can be stored as user presets.