Hosted Phone System Features: The Ones Worth Using and What Each Is For (UK 2026)

Quick answer

A hosted phone system comes with dozens of features, and a small business will use about ten of them. The ones that matter, roughly in order of how often they change a working day: one number on every device (desk phone, desktop app, mobile app); hunt groups and call queues so a call never depends on one person; an auto attendant for hours and routing; voicemail-to-email; presence and transfer so nobody is put through to someone on a call; call recording where it is needed; call analytics; CRM and Microsoft 365 integration; time-of-day and holiday rules; and automatic failover to mobiles when the office is down. Most are included in a standard seat; recording, analytics and contact-centre features sit on higher tiers or bolt-ons. The features that rarely earn their keep are the ones on the brochure that nobody asked for.

This guide explains each feature in plain English, what it is for and where it sits on a price list. If you want the right set configured for your team, get a no-obligation quote.

Included in almost every seat

One number, every device

Your business number rings the desk phone, the laptop and the mobile app at the same time, and outbound calls from any of them show the business number. Staff stop giving out personal mobiles, home workers are indistinguishable from office workers, and a missed call is a choice rather than an accident. For hybrid teams this alone justifies the move.

Softphone apps

The desktop and mobile apps are the modern handset. A headset and the app cover most desks; the mobile app covers the field. Check the apps are ones staff will actually use - a clunky app becomes a reason people answer on personal mobiles.

Hunt groups and call queues

A hunt group rings a set of people - all at once, in turn, or longest-idle-first - so a call to sales reaches sales, not a specific empty desk. A call queue holds callers when everyone is busy, with music, a position announcement and an overflow rule after a set time. Together they are the difference between a phone system and a set of phones. Route every menu option and every main number to a group or queue, never to an individual.

Auto attendant

The recorded greeting and menu that answers your main number, with time-of-day and holiday schedules so it behaves differently when you are closed. Included, and worth an hour of design; see the auto attendant guide.

Voicemail-to-email and visual voicemail

Voicemails arrive as an email with the audio attached and, on most platforms, a transcript. Team voicemail boxes email everyone in the group, so a message left with sales at 5:59 p.m. is read by whoever starts first. Nobody dials 1571 any more.

Presence and transfer

The app shows whether a colleague is on a call, in a meeting (from their calendar) or available, so a receptionist transfers to someone who can answer, not into voicemail. Warm transfer (announce the caller first) and blind transfer are one click; call park lets a call be picked up on another device.

Time-of-day and holiday routing

Rules that send calls to different places by hour, day and date, set once and left alone. The bank-holiday greeting configures itself.

Caller ID control

Choose what number shows on outbound calls - the main number for everyone, a direct dial for those who want it, a different number per campaign. Also the ability to hide personal mobiles behind the business number when staff call from the app.

Do not disturb, forwarding and simultaneous ring

Per-user rules for where their calls go and when: mobile after 5 p.m., colleague when on holiday, voicemail during focus time.

Multi-site and free internal calls

One system across every office, extension dialling between sites, a shared reception or attendant, and staff who can sit at any site. Business-as-usual on hosted; a networking project on a PBX.

Higher tier or bolt-on

Call recording

Record every call, inbound only, or specific users, with retention rules, search and playback in the portal, and pause-and-resume for card payments. Usually roughly £2 to £5 per user per month extra as an illustrative September 2026 guide, or the top seat tier. Required in regulated sectors; useful for training and disputes everywhere. The rules are in call recording for compliance.

Call analytics and wallboards

How many calls came in, how many were missed, how long callers waited, who answered, when the peaks are. A wallboard puts it on a screen for the team. This is how a small business finds out it misses a fifth of its calls between 12 and 2. See call analytics for business.

CRM and Microsoft 365 integration

Screen-pop the customer record when they ring, click a number to dial from the CRM, log calls automatically, see Teams and Outlook presence in the phone system. The time saving is real; the integration quality varies by CRM, so test yours before signing.

Contact-centre features

Skills-based routing, callbacks, advanced queue reporting, supervisor listen-in, SMS and web chat in the same queue. Overkill for most small businesses, essential for a support desk of eight.

Conferencing and video

Most platforms include audio conferencing and many include video; most businesses use Teams or another meeting tool for this instead. Do not pay for a video feature you will not use.

Microsoft Teams integration

Making Teams the phone for some or all users via Operator Connect or Direct Routing, with transfers between hosted and Teams users. Covered in Microsoft Teams Phone for UK businesses.

The features that quietly matter

• Automatic failover. If the office loses internet or power, calls carry on to mobiles or another site without anyone doing anything. Ask how it is configured; see business continuity with hosted telephony.
• A portal you can use. Adding a user, changing a greeting or re-routing a queue should take minutes, by you, for nothing. Test the portal in the demo.
• Emergency calling. 999 with correct location information for every site and for remote workers. A legal requirement, and a feature to ask about.
• Number management. Adding DDIs, porting in ranges, pointing numbers at different flows. Should be self-service or a same-day change.

The features you probably will not use

Fax-to-email (unless you are in a sector that still faxes), paging, hot-desking on physical phones (the app replaced it), elaborate music-on-hold libraries, and anything described as "AI-powered" without a specific thing it does for you. If a feature would not change a working day, do not pay a tier for it.

What features cost

A standard business seat, roughly £8 to £20 per user per month ex VAT as an illustrative September 2026 guide, includes everything in the first section. Recording, analytics and integrations sit on the top tier or as bolt-ons; contact-centre features are priced separately. The full picture is in what hosted telephony costs.

The bottom line

The ten features that change a working day - one number everywhere, groups and queues, an auto attendant, voicemail-to-email, presence, recording, analytics, integration, hours rules and failover - come with almost any hosted seat. Choose a provider by how well those ten work and how easily you can change them yourself, not by the length of the feature list.

We configure the ten that matter for your business as part of every install: get a no-obligation quote or call 0333 006 9399. Our hosted telephony service page explains how the set-up works.

Not sure who is calling one of your numbers? Our free UK phone number checker shows which network or provider Ofcom allocated any number to, and whether the range is in service — no sign-up.