skip to Main Content

The PSTN / ISDN Great Switch Off

The PSTN / ISDN switch off has started and affects, any services supported on Wholesale Line Rental (WLR), including Single Analogue Lines, Multi-Lines, ISDN2 and ISDN30, will need to move to alternatives.

Dont delay benefit from improved telecoms and a 34%  saving

The withdrawal will also affect broadband customers. Most broadband ADSL and FTTC services are supported by Single Analogue Lines. When this analogue line is switched off, the broadband product will need to move to a Single Order variant.

PSTN / ISDN Switch Off Peterborough Telecom Business Phone Systems


The Stop Sell Policy – Trigger for Stop Sell

  • Exchange will have more than 75% Ultrafast Coverage* based on premises with Customer Ready for Service (CRFS) availability
  • Exchange coverage is determined against Total Network Address Points (NAD Keys) within the exchange

The Timing of Stop Sell

  • Stop sell will be notified once an exchange has over 75% of Customers Ready for Service (CRFS) Ultrafast enabled or when there is a high guarantee that the exchange will reach 75% within 12 months
  • Openreach have, as of June 2020, identified 117 exchanges that they believe will reach 75% fibre availability by June 2021 so have issued 12 months’ notice to Stop Sell Copper products in these exchanges
  • Openreach have also added an additional 51 exchange locations as of the 5th October 2020. These 51 exchanges will have the STOP SELL policy applied as of the 5th October 2021
  • If the trigger point of over 75% CRFS cannot be met within 12 months the stop sell will not be implemented until that exchange reaches 75% (which may take longer than 12 months)
  • Further exchanges may be added at any time and the programme will be constantly reviewed by Openreach

Stop Sell Policy and Product Scope

Stop sell applies at a premises level only where that premise has access to an available GEA-FTTP product. Where a premise has access to FTTP there will be no new supply of other products, CP Transfers, working line takeovers, addition of broadband to voice lines, bandwidth modifications, start of stopped lines or migrations to non-Ultrafast products.

  • If a premise has GEA-FTTP available to order, then only GEA-FTTP is available to that premise and instantly become within the scope of stop sell
  • If a premise does not have GEA-FTTP available, SOGFAST, SOGEA, GEA-FTTC, SOTAP (where no fibre is available), MPF & WLR (only until September 2023) will be available

The same Stop Sell principles will apply for the fibre exchanges as the Salisbury trial exchange (note: the stop sell principle matrix has changed as a result) see below.

Considerations will also be given to investment policies in the copper network that may include VDSL Cabinet capacity and repairs of the copper network.

Business phone systems Peterborough Telecom

No move Back to Copper

In addition to stop sell – once a premise moves to FTTP a “no move back to copper” policy from the date of the stop sell notification being issued will come into effect. In this situation, the same stop sell situations would apply to that premise.

This will only come into effect from April 2021 (subject to regulatory enablers) and be applied at that point to premises with working FTTP lines that have had stop sell notifications published up to that date and onwards.

no move back to copper peterborough Telecom


Guide to the new technology:

The below diagram shows the like-for-like technology transitions from WLR/MPF + broadband to the new Single Order broadband.

Like for Like transition to Single Order Broadband

like for like transition to single order broadband
engineer activity Peterborough Telecom

An additional module that Openreach plan to introduce will be the ‘Install UPS’. This will allow the Openreach engineer to install your third-party battery backup solution. To note, Openreach will not source or provide the battery backup unit.


OTT IP services are standalone products. They are not included with a single order broadband and require a separate order. For Voice only single lines or low data consumption services (e.g. payment card services), a single order low bandwidth product will be available. The Communication Provider should then offer an over the top Voice service and should be aware of any other required services on the line, though these might be supported by a third party.

EU = End User


Alongside your communications product set changing, the way you operate your day-to-day business functions is also likely to change.

Below is an example of a small business set up with analogue office telephones, payment devices and alarm services, all connected via physical wiring and socket extensions.

wlrmpf plus broadband line Peterborough Telecom

Following the migration to SO broadband, all devices will need to be compatible with IP. Onsite premise equipment may need to be changed.

single order broadband line Peterborough Telecom
all business telecom devices peterborough telecom

Providing Peterborough Based Businesses, Specialist, Expert and Friendly Business Telecoms advice

Common Telecom Acronyms

ADSL : Asymmetric Digital Subscriber Line
ATA : Analogue Telephone Adapter
CNI : Critical National Infrastructure
CP : Communication Provider
CRFS : Customers Ready for Service
EU : End User
GEA-FTTC : Generic Ethernet Access Fibre to The Cabinet
GEA-FTTP : Generic Ethernet Access Fibre to The Premises

HVS : Hosted Voice Select
ISDN : Integrated Services Digital Network
LLU : Local Loop Unbundling
Metallic Path Facility
Network Terminating Equipment
: Over The Top
PSTN : Public Switched Telephone Network

SMPF : Shared Metallic Path Facility
SOGEA : Single Order Generic Ethernet Access
SOGFAST : Single Order G.Fast
SOTAP : Single Order Transitional Access Product
VDSL : Very high-speed Digital Subscriber Line
VOIP : Voice over Internet Protocol
WLR : Wholesale Line Rental

Client Testimonials

Request A Free Business Telephone Audit

Find Out More

What to consider when choosing a new Telecoms Provider

Avoid The Pitfalls

When do you need to transition to ALL-IP?

Don't Get Caught Out

Brightfield Business Hub
Bakewell Road
Orton Southgate,

Peterborough Telecom

Providing Business Telephone Systems for businesses in and around: Peterborough, Oakham, Huntingdon Stamford & Cambridge 

Peterborough Telecoms providing expert local Business Telecoms advice

Back To Top