The humble landline quietly does more than make calls. Behind the dial tone sit features businesses depend on every day - call divert, caller display, hunt groups and more. This guide explains the classic landline features, and the bigger set you unlock by moving to a modern system.

The classic landline features

If you've used a business line for years, these will be familiar:

  • Caller display - see the caller's number before you answer.
  • Call divert / call forwarding - send calls to another number, e.g. a mobile after hours.
  • Hunt groups - calls ring across several lines or phones until someone answers.
  • Three-way calling - bring a third person onto a call.
  • Call waiting - know a second caller is trying to reach you mid-call.
  • 1471 and Anonymous Call Reject - identify the last caller and block withheld numbers.
  • Select Services - the umbrella term BT used for many of these add-ons.

These were genuinely useful - but on the old network they were often separate paid extras, and limited compared with what's possible today.

How features were delivered (and why that's changing)

On the analogue network, features were provided by the exchange and your handset, with capacity tied to physical lines and channels. That's why adding a hunt group or extra divert often meant a call to your provider and another line on the bill.

As the network moves to digital (the PSTN switch-off), features become software - configured instantly, included as standard, and far more capable.

What carries over to digital

Reassuringly, the features you rely on don't disappear when you move to a Digital Voice line or hosted system:

  • Caller display, divert, hunt groups, three-way calling and call waiting all continue.
  • They're typically included rather than charged as extras.
  • They're easier to change yourself, without waiting for an engineer.

What you gain by upgrading

This is where modern systems pull ahead. Beyond the classics, you get:

  • Voicemail-to-email - messages land in your inbox as audio or text.
  • Auto-attendant - a professional "press 1 for sales" menu.
  • DDI - direct numbers for staff and departments.
  • Call queues - hold callers gracefully at busy times.
  • Call recording - for training and compliance.
  • Call analytics - see volumes, missed calls and patterns.
  • Work-from-anywhere - the same features on a softphone or mobile.

We round up the best of these in top hosted phone system features.

Choosing the features that matter

Don't pay for bells you won't use. A quick way to decide:

  • Sole trader / single line? Divert, voicemail-to-email and caller display probably cover it - a Digital Voice line is plenty.
  • Small team? Add hunt groups, an auto-attendant and DDIs.
  • Customer-facing or contact-heavy? Queues, recording and analytics earn their keep.

The bottom line

The features you value on your landline - divert, caller display, hunt groups - carry across to digital, usually included rather than billed as extras. And moving unlocks a far richer set on top. So the switch isn't about losing features; it's about gaining them. Want to map your must-haves to a system? Explore our Cloud Telephony service or request a callback.

Frequently asked questions

What features does a business landline have?

Classic landline features include caller display, call divert/forwarding, hunt groups, three-way calling, call waiting, 1471 and anonymous call reject - often grouped as "Select Services" and frequently charged as paid extras on the old network.

Will I lose my landline features when I switch to digital?

No. Caller display, divert, hunt groups and the rest carry over to digital and hosted services, usually included as standard rather than billed separately, and they're easier to change yourself.

What extra features do modern phone systems add?

Beyond the classics, you gain voicemail-to-email, auto-attendant menus, DDI direct numbers, call queues, call recording, analytics and the ability to use the same features from anywhere on a mobile or softphone.

Are landline features still charged as extras?

On the old analogue network many were. On modern digital and hosted services, most of these features are included in the package rather than charged individually.