I HAVE AN ATT MERLIN 410 SYSTEM.ON ONE OF MY

AT&T Merlin BIS 34 user manual
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http://manuals.xtreemhost.com/dw/At%26t%20merlin%20bis%2034.pdf

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It depends on how the control unit is programmed. The BIS 10 can't be used as a stand-alone phone (as in....you can't connect it directly to a telephone line).

The BIS 10 will work with the following systems:

AT&T Merlin 206
AT&T Merlin 410
AT&T Merlin 820
AT&T Merlin 820D2
AT&T Merlin 1030
AT&T Merlin 3070
AT&T Merlin II (with the proper modules installed)
AT&T Merlin Legend (with the proper modules installed)

No.

The BIS 10 and related telephone units need to be connected to one of the following AT&T Merlin telephone systems:

AT&T Merlin 206
AT&T Merlin 410
AT&T Merlin 820
AT&T Merlin 820D2
AT&T Merlin 1030
AT&T Merlin 3070
AT&T Merlin II (With the proper modules installed)
AT&T Merlin Legend (With the proper modules installed)

You might take an electronic device and plug it into the outlet where the Merlin was plugged in. I doubt it , but it could be a power outlet failure. other then that Merlin 410's can still be purchaced on the refurbished market.

Depends on what system you have that phone installed o.

If Merlin Legend, on the left side of the phone there is a 3 position switch. Its in the middle position now.

Slide that down
press on of your lines
Press *347

Slide the switch to the middle position.

If that doesnt work, we need to know the system you have these phones on.

If you have a "squared" system (each line assigned to a different button), just press a different line button. To change the order of the lines, slide the "T/P" switch to "P" and press the line buttons in the order you want to use them (ie: Line 4, Line 3, Line 2, Line 1).

If your lines are "pooled" you just get the next available line from the pool - no choosing which line you get.

Hope this helps.

Unfortunately no. The merlin 410 was an early phone system that didn't have much in the way of programming.

That system is 2o years old (give or take) It might be time to look at a new system.

This is a very old system. Phones loose programming if power is lost.
There was no way of backing up programming on phones at those times.
And unfortunately you do have to go to each phone to program ringing scheme.

do you have a manual? the programming code escapes me...you need to remove the lines on that phone. it wont let you program a button over a line button, so you must first remove the "Line appearances" then you should be able to.

Let me know if you need to code for the removal of line appearances....