G
o
o
g
l
e
×
Please click
here
if you are not redirected within a few seconds.
All
Images
Videos
Books
Maps
News
Shopping
Search tools
Any time
Any time
Past hour
Past 24 hours
Past week
Past month
Past year
All results
All results
Verbatim
Plain old telephone service
View all
Plain Old Telephone Service, or Plain Ordinary Telephone System, is a retronym for voice-grade telephone service employing analog signal transmission over copper loops.
Wikipedia
Voltage
:
around 48 volts DC
Ad
·
www.ooma.com/
Analog Phone Lines Out-of-Date | One Low Monthly Rate with Ooma
Trusted by more than 2 million users, Ooma AirDial is a leading POTS replacement solution. Ooma AirDial provides critical phone service to...
POTS Resources
·
Compliance
·
Remote Device Management
·
Ooma AirDial