does it work when the electricity goes off?

Yes this works without batteries and with out external electricity source when plugged into a traditional telephone landline service. Digital Phone like xfinity or At&t U-Verse may not work in a power outage because the phone line will be powered by a cable modem/router which gets it's power from your 120vac wall outlet. I bought a UPS battery backup formy cable modem and PC so they stay powered on for up to 60 min on a power outage. Assuming the cable provider still has electricity and their servers and internet don't go down, you should still have phone service. Even cellular companies can lose electricity causing an phone outage. Historically Old fashioned landline has been the most reliable in power outages.

How long is the coiled handset cord. I'm returning a phone now because the cord was just too short.

The cord is only 7 ft. You can order a 25ft cord RCA 25 feet Handset Coil Cord, White (TP282W) for $ 5.40 on Amazon to make it longer. I hope this response helped. Have a great day.

Does this phone work with AT&T connection only or could we use this phone with any connection?

A phone is a phone, doesn't matter who your landline service is. Even a home VOIP service from a cable company transforms to analog in the home. The only phone system this wouldn't work with is a digital PBX system used in businesses. Those use specific IP phones.

ASIN	B00005MITU
Best Sellers Rank	#2,003 in Office Products ( See Top 100 in Office Products ) #8 in Landline Phones
Customer Reviews	4.2 4.2 out of 5 stars (23,472)
Date First Available	October 2, 2001
Is Discontinued By Manufacturer	No
Item Weight	1.05 pounds
Item model number	210BK
Manufacturer	AT&T
Product Dimensions	8.27 x 2.5 x 2.99 inches

AT&T AT&T 210 Basic Trimline Corded Phone, No AC Power Required, Wall-Mountable, Black

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