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I have a LV-1K and when I plug in the power it shorts out my phone line
The 12 VDC power supply  that ships with the LV-1K is rated for 500mA output.  If power is being shared with other equipment, ensure the current draw do...
Thu, 7 May, 2026 at 11:16 AM
LM-1A does not indicate a message waiting. It does flash on incoming ring.
The LM-1A relies upon a DC voltage to be applied to the phone line to detect a "Message Waiting" condition from the phone system. ( 68 VDC minimum...
Thu, 7 May, 2026 at 11:30 AM
We use a DNA-510 for emergency tones and messages. The tones seem to work fine but I never hear the message play. I get in to programming and can hear the messages play back so what am I doing wrong?
If Touch Tones will be used to play desired message(s) from the DNA-510A, programming is required to make this happen.  Keys 1-9 can be "connected ...
Thu, 7 May, 2026 at 11:45 AM
I have an older PA-2A and we recently switched to a different carrier for our phone service. The paging works but the loud ring feature no longer works.
Older PA-2A units (with five screw terminals) detect the ring signal that is "earth ground referenced". (from legacy copper CO phone lines) Mo...
Thu, 7 May, 2026 at 11:53 AM
I have a SLP-4 and my customer likes the “Westminster 4” wave sound but the customer would like the Westminster chimes to continue for a longer period of time. Are there any other versions of the Westminster chimes available?
Yes, we have a “Westminster 8” wave file that is popular.  It is like the Westminster 4 but eight total chimes instead of four.  If you contact technical su...
Mon, 11 Dec, 2017 at 10:22 AM
Can I connect more than one AES-2000 to a single phone line?
Yes, this is possible, but a LC-3 would be required to permit the line sharing, PLUS facilitate programming by allowing the administrator to connect to one ...
Wed, 6 May, 2026 at 2:13 PM
I have a new AES-2000 and when I try to connect with it to program it, I get a message that says, “No Data Received”. When I click “OK”, the unit disconnects. What am I doing wrong?
AES-2000 products have two versions: (10-digit or 12-digit dialing units) (The settings in the AES programmer MUST match the unit version or this error wi...
Fri, 1 May, 2026 at 8:54 AM
On a model CTG-1, can I set a different schedule for Wednesday?
Unfortunately, you cannot as the CTG-1 only supports one schedule.  You can program the CTG-1 to not produce any tones at all on Wednesday and then use a se...
Mon, 11 Dec, 2017 at 10:23 AM
The computer I have always used to program my CTG-2 crashed, so I had to replace it with a new one. Is there a way to capture the data from the CTG-2 and save it to the new computer?
Yes there is and we have a written procedure on how to do it.  See DOD # 899 for complete details.
Mon, 11 Dec, 2017 at 10:24 AM
I am wiring a C-2000, C-2000A or C-2000B into a trunk port/FXO Port on my phone system and I get a constant clicking from the controller when I access that trunk port/FXO port. What does this mean?
This usually means the controller needs to be programmed into the “*5” mode (“dial 9 to access the outside line”).  The description of this mode is found in...
Mon, 11 Dec, 2017 at 10:24 AM