Brochure

When you want to present, broadcast, or record a telephone conversation, you need a device
to process the phone call and present it to the console, as well as to separate “send” audio
from the “receive” audio on the call. If send and receive audio aren’t isolated, it will result in
an echoey, muddy sound - not to mention, annoyed listeners.
As many major markets are shifting from traditional phone lines to Voice-over-IP (VoIP) systems,
the digital hybrids that could have performed this job in the past are becoming outmoded.
Radio stations need a VoIP hybrid to ensure on-air and recorded phone calls sound beautiful.
A dual-line hybrid, VH2 easily interfaces two VoIP lines to studio audio gear for individual
broadcast or flawless conferencing. VH2 prevents echo and distortion, and automatically
adjusts caller audio to a uniform level, leaving you with a result that’s clean and clear. Plus,
VH2 uses VoIP phone lines, saving you money and increasing functionality. VH2 can even
connect to many VoIP PBX systems.
Features
Audio Processing and Performance
• Prevents echo and other artifacts
• G.722 codec support for wideband calls. Also
supports G.711
• Receive filter reduces telephone line noise
• Selectable automatic gain control (AGC)
maintains a consistent audio output, even
when the caller signal varies widely
• Selectable caller ducking lowers incoming
caller audio so local talent remains in control
of the conversation
• Can be configured to automatically answer
and disconnect incoming calls
IP Features
• Web-based configuration for the VoIP phone
line setup, making it easy to adjust settings
remotely from a browser
• Transfer calls back and forth to many PBXs, or
use optional companion extension VoIP phone
• Ability to engage or drop or dial calls via web page
• Companion phone (
not included ) - easy to
move calls between handset and hybrid with
the touch of a button
Two-Line VoIP Hybrid
www.comrex.com • e-mail: [e-mail] • 19 Pine Road, Devens, Massachusetts 01434 USA • Tel: [phone] • Fax: [phone]
To learn about VH2 purchasing options, contact your favorite audio dealer.
Optional companion VoIP Telephone
*Specifications and features subject to change without notice.
When the Polycom VVX201 - the VH2
companion phone, sold separately - is
configured as a VH2 extension, it’s easy to
transfer calls between the hybrids and the
handset with a single button push.
Dual Rack Kit also available!
Operation
• Easily segue from caller-to-caller
• Separately selectable single-ring auto-answer
function for assisted or unattended operation
• Handy front panel controls and status indication
• When used with companion VoIP telephone,
calls can be answered on handset and easily
transferred back and forth to VH2
• Hybrid on/off controls and status remotable
via web or contact closures
• Send and caller level indication
• Easy call conferencing
• Dual “On-Hold” audio inputs to send
program to callers on hold
• Auto-Switching External Power Supply
• Compliant with worldwide regulations,
including FCC, CSA, and CE
Audio Configuration
• Configure for separate caller outs or single
caller mix
• Configure for separate send feeds or single
• Pro level, balanced audio I/O in XLR
• Selectable AES3 I/O (Supports 48KHz
sampling rate only)