Skip to content
SY+

Teams calling

Your phone system.
Inside Teams.

Make and take external calls on your business numbers from Microsoft Teams, with proper routing, queues and support behind it.

Incoming callTeams desktopTeams mobileQueues & menus

One app for everything

Chat, meetings and external calls in the place your team already works.

Keep your numbers

Existing business numbers move across and keep working.

Real call handling

Queues, menus and out-of-hours rules, not just person-to-person calls.

An external call, handled properly.

A caller dials your published number. Routing decides where it lands, then rings the right Teams users on desktop or mobile — with handsets kept where they still make sense, such as reception.

Incoming callTeams desktopTeams mobileQueues & menus

Microsoft and Microsoft Teams are trademarks of the Microsoft group of companies. SY+ is an independent provider of telephony services delivered alongside Microsoft Teams.

What's included

01

External calling

Inbound and outbound on your business numbers.

02

Number porting

Existing numbers transferred onto the service.

03

Queues & attendants

Menus, hunt groups and overflow handling.

04

Mobile & desktop

The same extension on every device.

05

Mixed estates

Teams users alongside desk phones where needed.

06

Managed rollout

Configuration, testing and user guidance included.

How SY+ delivers it.

  1. Step 1

    Review your tenant

    We check licensing and how Teams is used today.

  2. Step 2

    Design the calling

    Numbers, routing and devices mapped to your teams.

  3. Step 3

    Enable and support

    Rolled out in stages, with help once people are live.

Why SY+

  • Telephony experience, not just Microsoft licensing
  • Routing designed before anything is switched on
  • One team for Teams, connectivity and IT

Explore Microsoft Teams in detail

What Microsoft Teams Phone is

Most organisations already use Teams for chat, meetings and file sharing. Teams Phone extends that to ordinary telephone calls, so the app people have open all day also becomes the way they call customers and take calls from the outside world.

The appeal is consolidation. There is one directory, one presence indicator, one set of devices to manage and one application to learn. For IT it removes a separate system to maintain; for staff it removes the habit of switching between a handset and a screen to do related things.

Making and receiving external calls

Out of the box, Teams calls other Teams users. Calling ordinary telephone numbers requires connecting Teams to the public telephone network, which is the part we take care of.

Once connected, users dial from the Teams dial pad on desktop or mobile, calls to your business numbers arrive in Teams, and transfers, holds and forwarding behave as people expect from a phone system. Headsets and Teams-certified devices can be added where users prefer physical hardware, and reception areas or shared spaces can still have a handset.

Keeping existing business numbers

Your main switchboard number, department numbers and individual direct dials can be brought across to Teams, so customers carry on calling exactly as they do today and none of your printed or online material needs changing.

We plan this as a scheduled piece of work: users are licensed and configured, the call flow is agreed and tested, and the numbers are moved at an agreed time. We check upfront that the numbers involved can be transferred, and if there is any exception you hear about it before the project starts rather than during it.

Call routing, queues and auto-attendants

Teams supports the call handling a business actually needs, provided somebody configures it properly. Auto-attendant menus greet callers and direct them to the right department, call queues distribute calls across a group with hold announcements, and time-of-day and holiday routing handle out-of-hours callers sensibly.

We map these against how your organisation works before touching the configuration: which team answers first, what happens on overflow, how a caller reaches a person rather than voicemail, and where calls should go when the office is closed. Left to defaults, this is the area that most commonly disappoints people after a Teams calling rollout.

Integrating Teams with the wider phone system

Teams does not have to be an all-or-nothing decision. Many organisations run a mixed estate — Teams for office and hybrid staff, handsets from a hosted phone system in reception, a warehouse or a workshop, and mobile users on the same call flow.

We design across the whole picture rather than one product, so calls route between them properly and reporting reflects the business as a whole. Where a specialist device or an existing system needs to stay in place, we work around it instead of insisting it is replaced.

Migration and user adoption

The technical side is only part of a successful move. If people do not know how to transfer a call or set up their voicemail, the rollout feels worse than the system it replaced, however well it is built.

We plan migrations in stages where that helps, test with a pilot group first, and give clear guidance to users on the handful of things they do every day. Managers get a walkthrough of anything they need to administer, and we stay close after go-live when the practical questions actually arrive.

Ongoing management and support

Teams calling is not a set-and-forget deployment. New starters need numbers, call flows change as teams reorganise, and Microsoft updates the platform regularly.

We handle the day-to-day administration and stay available when something needs looking at, working alongside your internal IT or acting as your managed IT support where you would rather one team covered both. If you are weighing up calling in Teams, tell us how your teams work today and we will explain what the move would involve.

Microsoft Teams FAQs

Not seeing your question? Our team is happy to help — call or drop us a message.

Do we need Microsoft 365 to use Teams calling?

Yes. Teams calling sits on top of your Microsoft 365 environment, and users need the appropriate licensing before external calling can be enabled. We review what you currently hold, explain what else is required and make sure the licensing matches the way each person works before anything is switched on.

Can we keep our existing numbers when we move to Teams?

Yes. Your switchboard number, department numbers and individual direct dials can be brought across, so customers keep calling the same numbers and your stationery, website and listings stay correct.

Can Teams handle call queues and an auto-attendant?

Yes. Auto-attendant menus can greet callers and route them to the right department, and call queues distribute calls across a group with hold treatment and overflow rules.

Can Teams work alongside desk phones and mobiles?

It can. Many businesses run Teams for office and hybrid staff while keeping handsets in reception, a warehouse or a workshop, with mobile users in the same call flow.

Will our team need training?

Most people pick up calling in Teams quickly because the app is already familiar, but a short walkthrough of transfers, voicemail and call handling makes a noticeable difference.

Is Microsoft Teams a Microsoft product?

Yes. Microsoft Teams and Microsoft 365 are products of Microsoft Corporation, and their names are Microsoft trademarks. SY+ is an independent provider that designs, delivers and supports calling within Teams; we are not affiliated with, endorsed by or sponsored by Microsoft.

Talk to us about Teams calling.

Tell us how your team uses Teams today and we'll explain the calling options.