Question 1

Can it be used as a wall phone?

Accepted Answer

Yes.  It can be used as a wall phone.  It can be used as a desk phone or a wall phone.

Question 2

What are the "2 non-standard batteries required"?  Will phone work in a power failure?

Accepted Answer

That description about "2 non-standard batteries" appears to be in error.The manual for this phone is available at http://cdn-media-att.vtp-media.com/ecp/documents//product_Product/1889//8359/CL4940_UM_6.pdf.  If you look through the manual carefully, you will see that it specifies a power adapter, but makes no mention of batteries.On page 13 of the manual, it says:This telephone provides minimal functionality during a power failure. When AC power is not available, the screen is blank and many telephone features do not function. Only touch-tone dialing and handset volume adjustment are supported. The telephone uses power from the telephone line to enable you to make and answer calls using only the handset and dialing keys.

Question 3

can you record your own voice for this answer machine or do you have to use pre-recorded message provided by mfg.

Accepted Answer

You have a choice of using the automatic announcement or you can make your own by pressing Menu Select. Press it again and select Answering System. Then press ID or DIR to select "Record New" The system will tell you to announce your message, then press 5 when you are done. Then your own announcement will play. To listen to your own announcement again, scroll to "Play Current" and press Menu/Select. You can always change your message or go back to the recorded announcement. Just do things in reverse. The recorded announcement is a permanent part of the system, so you don't have to worry about it being deleted. Hope this helps.  Regards, Paul

Question 4

Is the LCD display light always on or just when callings are coming through or in use?

Accepted Answer

The light is only on when a call comes through and in use. Once you hang up it turns off.

ASIN	B007B5VH0E
Answering System Type	Digital
Best Sellers Rank	220,583 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,059 in Corded Analogue & DECT Phones
Box Contents	1- Base, 1- Corded Handset, 1- Power Adapter, At&T Cl4940 Corded Phone With Answering System, Backlit Display, Caller Id/Call Waiting And Audio Assist, Extra-Large Tilt Display/Buttons, Line Cord, Owner's Manual, Quick Start Guide, White
Brand Name	AT&T
Colour	White
Compatible Devices	Landline
Conference Call Capability	3 way
Customer Reviews	4.4 4.4 out of 5 stars (10,583)
Dialer Type	Single Keypad
Enclosure Material	Plastic
Global Trade Identification Number	00650530024054
Is there Caller ID	Yes
Item Dimensions	20.1 x 22.4 x 9.4 centimetres
Item Type Name	landline phone
Item Weight	1.5 Pounds
Manufacturer	AT&T
Manufacturer Part Number	CL4940
Model Number	CL4940WHT
Multiline Operation	Single-Line Operation
Number of Batteries	2 Lithium Ion batteries required.
Number of Items	1
Number of Packs	1
Phone Standby Time	1 hours
Power Source	Corded Electric
Recording Capacity	25 Minutes
Telephone Type	Corded
UPC	650530024054
Unit Count	1.0 count

AT&T CL4940 Corded Standard Phone with Answering System and Backlit Display, White

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