Specifications

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USING DIAL-UP • GENERAL USAGE
TECHNICAL SUPPORT 978-486-0086 • [e-mail] • www.burk.com
CHECKING CURRENT DATE AND TIME
To check the VRC2500’s real-time clock, enter:
 “0 6 0”
The VRC2500 will respond with the current date and time (in
military time).
USING THE SOUND SENSOR
The VRC2500 unit contains a small condenser microphone built
into its front panel. This microphone can be activated at any time
to listen to any sounds being generated in the vicinity of the
VRC2500. This is handy to check for proper operation of cooling
fans or other noisy equipment or even listening for voices in the
area of your VRC2500 (in the case of a security alarm).
To activate the sound sensor, enter:
 “0 5 0 #”
The VRC2500 will respond:
• INTERNAL MICROPHONE ON
To deactivate the sound sensor at any time prior to the end of the
user-defined duration, enter:
 “0 5 0 *”
The VRC2500 will respond:
• I
NTERNAL MICROPHONE OFF
USING THE AUDIO OUT CONNECTOR
The VRC2500 can patch incoming telephone audio to the
VRC2500’s Audio Out back-panel connector. This is helpful if you
need to broadcast audio directly from the telephone over your
transmitter.
Selecting the Audio Out path can be done using DTMF tones.
To route telephone audio to the Audio Out connector, enter:
 “0 8 0 #”
Please refer to Appendix
A for a complete list of the
DTMF codes to use when
accessing the Voice Interface in
Voice Mode.
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