-The world's best, most affordable digital hybrid
-DSP digital technology ensures the very best audio quality and the deepest, most reliable hybrid null
-Easy to install, simple to operate
-Built-in speaker amplifier
-Balanced audio in and out
-Mic or line inputThe Comrex DH20 is a high quality single-line telephone interface, designed to interconnect a standard telephone line and your audio equipment, allowing you the ability to send audio to and receive audio from a connected telephone line.
The Comrex DH20 is ideal when the very best audio quality is required for talk shows, news feeds, production, recording studios, and internet applications.
Comrex newest DSP technology delivers better and more reliable sound quality. The Comrex DH20 delivers the deepest and most stable hybrid null, ensuring maximum isolation between the send and caller audio. That means no echo and no "bottom of the barrel" sound.
In addition, they've added selectable automatic gain control (AGC) and caller ducking. With AGC, each call will be delivered to your equipment at the same level. Caller ducking reduces the caller's audio level when the announcer speaks, providing a more "controlled" environment. They've also added a speaker amplifier so you can connect a speaker directly to the unit and monitor callers without headphones.
-Selectable AGC ensures every caller is at the same audio level
-Selectable caller ducking
-Selectable auto-answer/auto-disconnect compatible with most telephone central offices including loop current interruption and busy/reorder tones
-Remote control and status
-Automatically accepts all worldwide voltages
-Worldwide compliant, including FCC, CSA, CE and CTR21