Friday, September 19, 2025

The Time for POTS Replacement Has Come

By: John Shepler

Nobody likes change when it is forced upon them. But change we must as technology relentlessly advances. On its way out are innovations from the gilded age. The incandescent light bulb? Gone. The telegraph? Long gone. The telephone line? You guessed it. It’s going fast.

POTS is Kaput!
Alexander Graham Bell’s fantastic invention, the telephone, is going stronger than ever. But, it has morphed into technologies that weren’t dreamt of by Bell or Watson. What’s on the way out is the century-old connection system of twisted pair copper wires and the instruments that connect to them.

Plain Old Telephone Service or POTS is the current jargon for standard telephone lines consisting of two small diameter copper wires connected to a telephone company office that provides the power, switching and signaling needed to allow any phone to talk to any other phone around the world.

Why Ditch It?
There are two answers. Cell phones and Computer Networks. Neither have any use for POTS interfaces. Residential users have long embraced their smartphones to the exclusion of most everything else. Fewer and fewer are willing to pay the phone company ever increasing fees just to have an old-timey desk or wall phone available just in case the cell tower goes out.

Businesses have been on a similar trajectory. Mobile phones have become important business tools, but the desk phone still has a lot of value. The only difference is that the desk phone often connects to the computer LAN rather than its own unique network. This enables a lot more calling features, including a mash-up of desk sets, smartphones, laptops, PCs and tablets.

With this every increasing switch away from POTS, the phone companies find themselves with huge stockpiles of lines and switching equipment but less and less revenue to support them. That’s why the petitioned the FCC to let them decommission their copper resources and convert the central offices to data centers in high demand by AI and other computing needs.

Why Copper Retirement is Actually a Problem
Not everybody is on-board with chucking a perfectly good technology that is serving them reliably. Lots of businesses still have multiple POTS lines with in-house switching. Larger systems use a digital connection called PRI that multiplexes 23 POTS lines into a par of… you guessed it…twisted pair copper wires. Yes, as POTS goes away so does PRI and its cousin, T1 lines, that use the same wiring.

Another problem is FAX. Traditional FAX machines were designed for POTS and don’t like packet switched networks such as the Internet. Other systems specific to elevator phones, fire and burglar alarms, credit card verification, gate access, and emergency call boxes also were designed for POTS and only POTS. You don’t just plug these into your LAN and call it a day. So, what to do?

POTS Replacement Options
While POTS, PRI, T1, DSL and other copper line connections are rapidly fading into the sunset and not likely to return, there are replacement solutions available. Some popular ones are based on LTE cellular with dual SIM cards, battery backup, and failover Internet access. Also important is that a POTS replacement box provides the same signaling and RJ-11 connector that you’d get from a telephone line wall jack.

On a larger scale, SIP trunking is a replacement for carrying multiple phone lines used in offices and call centers. It can be provisioned over the Internet or, better yet, through a direct connection to a cloud phone service provider that interconnects with the Public Switched Telephone Network.

Have you been notified that your POTS service is being discontinued or greatly increasing in cost? It’s time to consider moving on with a new network based system or a POTS replacement appliance that simply drops in place of your old phone line. Get expert technical advice and pricing on POTS replacement solutions now.

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