Manual

5
II. EarShot IFB
Introduction
Comrex EarShot IFB is a hardware-based system designed to answer phone calls and deliver live audio feeds
to callers. EarShot IFB is designed to provide telephone-based live studio program and IFB audio to field-
based remote broadcasts, like TV ENG reports.
EarShot IFB has four audio inputs (or feeds) and callers can choose between these four feeds. Feed choice
is made by callers using DTMF (Touch Tone) selection via PIN code. EarShot IFB does not offer studio-based
controls of feeds - all controls are managed by callers.
EarShot IFB is capable of providing Interruptible Fold Back (IFB) functionality. Two of the feed inputs to the
device can be alternately configured as IFB inputs. When used as IFB, audio activity on this input will “interrupt”
the audio of a different feed until the IFB audio ends.