Review on 📞 Enhanced Communication Efficiency: AT&T 993 2-Line Phone with Caller ID Charcoal by Stacey Vang

I bought this unit to use as a home phone and have been using it for six months now. I don't need a second line throughout the house, but I spend a lot of time on conference calls and wanted an inexpensive device with two lines and a good speakerphone. were new. Paid $23 including shipping from Harbor Electronics. The sound quality is very good and more than loud enough (with the exception mentioned later). Easy to program speed dial numbers. The display isn't the brightest - typically dark blue text on a green LCD backlight. I've never had trouble reading. The buttons you use all the time - redial, line 1/2, mute, etc. - are all well-placed and clearly labeled. The only caveat is line 1 was POTS and then cable VOIP and line 2 came from another VOIP. Adapter. The two lines in the phone are not isolated from each other, so the device is susceptible to ground loops. With two different sources, you can hear a 60 Hz hum in the background. Drop a line or connect to the same source and there's no problem. I would give a fifth star if the phone split two lines. If I need another block I will definitely look for another one of these.