What it actually means
One Touch Switch (OTS) is the consumer process Ofcom mandated for residential broadband and landline switches on the Openreach and other UK networks. Before September 2024 you often had to call your existing provider, request a MAC code or a cease, then hand details to the new one, which created gaps in service and arguments about who owed what.
Under OTS you only ever speak to the gaining provider. They request your switch through a shared industry hub, confirm the match with your losing provider, then send you a Switching Information Statement before you commit. That statement spells out any early exit fees on your current contract, the start date and price of your new contract, and any service you stand to lose, such as an email address tied to your old ISP. You then have a clear go or no go decision in writing.
At home
What this looks like in the house
If you're the person who's already taken a Wednesday off work for an engineer who never showed, OTS matters because it removes the awkward retention call with your current provider. You don't have to argue your way out, sit through a script, or wait on hold to get a cease code. You tell the new provider you want to switch, they handle the conversation with your old one, and the changeover is coordinated so your home isn't sitting without internet on a school night.
In business
What this looks like at work
For a small business an unplanned day offline is real money. Card terminals down, VoIP handsets dead, staff staring at a spinning wheel. OTS was designed to stop the old gap where one provider ceased the line on Tuesday and the new one activated on Friday. The gaining provider now coordinates the cutover and has to disclose any early exit fees up front, so you can budget the move properly instead of finding out about a charge after the line has already moved.