A black desk phone on a dark worktop, coiled cord in the foreground, a second handset blurred behind.

Keep your handsets

Phones and devices

Keep your phones. They are simply going to work better.

Konvoice does not impose its own hardware and does not sell a “Konvoice-compatible” handset. Standard SIP phones are first-class devices, provisioned remotely and monitored like everything else.

Check our handsets for compatibility Book a demo

The handset on the desk, the app on the computer, the mobile in your pocket — one account, one number, one history.

Compatibility

What we provision automatically.

Automatic provisioning means: you enter the serial number or the MAC address, and the handset configures itself on its next start-up, wherever it is.

Family	Manufacturers	Provisioning	Advanced features
Desk phones	Yealink, Fanvil, Grandstream, Snom, Poly, Cisco SIP	Automatic	Line status, call pick-up, directory, transfers
DECT cordless	Yealink, Gigaset, Snom, Grandstream	Automatic	Multiple handsets, roaming across several bases
Analogue adapters	Grandstream, Cisco, Patton	Automatic	T.38 fax, door entry, alarms, lifts
IP intercoms and door entry	Fanvil, 2N, Doorbird	Automatic	Door release by code, call to a group
GSM and PSTN gateways	Patton, Yeastar, Portech	Assisted	Local backup line, emergency calls
Third-party SIP softphones	Bria, Zoiper, Linphone	Manual	Basic calling — the Workspace brings more
Headsets	Jabra, Poly, EPOS, Logitech	Not applicable	Answer and mute keys recognised

A model missing from this list almost always works with manual configuration. Send us your inventory before signing: we answer model by model, including when the answer is no.

What “device” means here

A handset, a cordless base, a door entry panel, a fax.

The list above is a table; these are objects. Each is provisioned the same way — one MAC address entered, and the device configures itself on its next start-up.

A corded desk phone with a coiled lead on a dark worktop, in raking light.

Desk phones Yealink, Fanvil, Grandstream, Snom, Poly, Cisco SIP — provisioned automatically.

A person in a hard hat standing next to a wall-mounted telephone, in a concrete corridor.

Wall and workshop phones A plant room, a loading bay, a corridor: the handset holds to the wall and rings in the same group.

An intercom panel recessed into a concrete wall, in raking light — black-and-white photograph.

Door entry and intercoms Door release by code, calls to a group, the entry panel’s camera in the call.

Gloved hands working on an opened device under a workbench lamp, in low light.

What is not a telephone T.38 fax, alarms, lifts, payment terminals: analogue adapters keep them in service.

Provisioning

Four ways to configure a handset, depending on where it is.

A new phone in a box, a phone already installed at a customer site 400 kilometres away, and a phone on a network with no internet are not handled the same way.

HTTPS with authentication — the handset fetches its encrypted configuration from a server that checks its identity. The default mode.
Local server on the Edge — the site provisions its own handsets without going out to the internet. Essential for an offline site.
DHCP option 66 or 160 — your network itself tells the handsets where to configure from, without touching each device.
QR code or manual entry — for an isolated handset, a home worker or an unusual model.

See the Edge’s role

One credential per device

Extension 203 has three distinct identities: the Yealink on the desk, the mobile and the browser. Stealing one does not open the other two.

Secret rotation

SIP passwords are generated, never chosen, and can be renewed in bulk without a site visit.

Immediate revocation

A lost handset is removed in one click. It stops registering within the second, wherever it is plugged in.

One password shared across every device on an extension is the most widespread defect in business telephony.

Estate

You finally know what is plugged into your network.

The question “how many telephones do we have, and where” has an answer in almost no company. Konvoice keeps that inventory on its own.

A live inventory

Model, firmware version, MAC address, site, person, last connection. Updated every time the handset registers.

Firmware you control

You decide the target version and the update window. Handsets update at night, in batches, with rollback on failure.

Unknown handsets flagged

A SIP device that appears on the network and is not declared is flagged and cannot register without approval.

Quality per device

Jitter, packet loss and perceived quality per handset. The phone in office 12 that has been crackling since Tuesday is identified before the complaint.

A brushed-metal entry intercom screwed to a bright red door.

The entry panel at the door is a telephone extension. It just has a button instead of a keypad.

And it rings in the reception queue like any other

Questions about devices

Do we need a voice VLAN?

It is not compulsory, but it is recommended as soon as a site goes past about twenty handsets. We supply the standard configuration for the most common switches, and we take part in the network study if you want us to.

Are our handsets locked if we leave?

No. Your phones belong to you and remain standard SIP handsets. On termination we supply the list of devices with their MAC addresses so that your next supplier can take them over.

Can we mix several brands?

Yes, and it is the most common situation after a few years. Konvoice provisions each brand with its own configuration format; your users see no difference.

What happens if a handset is stolen?

You revoke it from the console. It immediately loses the ability to register, its credentials are invalidated, and the event appears in the audit log. A stolen handset cannot make calls at your expense.

See Konvoice on your own numbers.

Thirty minutes, your call plan, your network constraints. We cut the link live and show you what keeps running.

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