Question about Lucent Merlin Legend MLX-20L Phone

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MLX-20L phone none of the buttons are working

I pick up the headset and I can hear a dial tone, but none of the buttons on the phone working. I can't even get into the menu, could it be something simple like a lock out buttton I happen to be missing or is this phone just pooched?

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1 Answer

The handset or a headset?

Have you tried unplugging and replugging the phone.

It also might be a glitch that would be fixed by rebooting the system.

Just be sure to power down the processor first, then the rest of the modules. When powering up start at the right, and move left.

Posted on Oct 17, 2009


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test the jack box with another phone, if the problem persist the problem will be the outside line. You must call to the company service. +48Vdc will be presente in the jack box.

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Unable to dial outsife line on mlx-20L

test the jack box. Use another phone for to proof the jack box. IF THE problem persist, the problem is the line .Call the company of phone. +48Vdc will be presente in the main lines. if is missing call the company.
God bless you

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Where is the t/p switch on model # 107108979 mlx-20L phone from aT

There isn't one, but you already know that :-)

What are you using it for? In an analog Merlin set, the T/P switch was used for programming. That is solved by the MENU button.

If T/P means TONE/PULSE, you have a different problem. Try # at end of dialing a pulse call and see if it stops the pulse dialing.

If none of these work, post back as a comment and I'll actually get out the manual with you. The link below gets you the 20L users manual.



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1 Answer

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Try a different phone. The clicker switch could be bad on teh phone.

Jun 24, 2009 | Lucent Merlin Legend MLX-20L Phone

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Call fowarding to cell phone

from the merlin phone pick up the phone for a dial tone then hit *33 and it will say "forward to:" then dial 9 + 1 + area code + phone number.

To undo the forwarding follow same procedure but when it says "forward to:" enter your merlin extension number.

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Perform a reset on the headset.  Hold down the mute button (the dial on the back of the headset needs to be pushed straight in), and at the same time hold down the call answer button until you see the green light on the headset blink a few times.  Release both the mute button and the call answer button.  See if it works now.  If it doesn't, try a re-subscription (should be available in the manual).

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Visit, search for your particular system and you can download a pdf of the manual

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AT&T Merlin Legend Console

It should be a night button on that MLX 20L. But there are TONS of ways to make that system do what you are describing. It woould take a vendor to dial in and pull some prints top say exactly.

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