An antenna mast on a ridge at dusk, the hills fading into haze behind it.

Where the fibre does not reach

Difficult connectivity

Most platforms assume a good connection. Yours does not have one.

A link with 400 ms of latency, 6 % packet loss and two outages a day is not a fault: it is daily life for a great many companies. Konvoice is designed for that network, not only for the fibre in a demo room.

Talk to an engineer Understand the Edge

The principle

Do not depend on what is not reliable.

The right answer to a poor link is not better compression: it is not needing to cross it at all.

Traffic stays local

Internal calls never leave the building. A satellite or 4G link is used only for administration and for getting out to the outside world.

Suitable codecs

Variable-bitrate Opus, which adjusts to the real bandwidth rather than saturating and dropping. G.729 when the link is genuinely narrow.

Loss tolerance

Error correction and packet redundancy switched on automatically when loss passes a threshold. A conversation stays intelligible at 8 % loss.

Voice traffic first

QoS marking on the packets, and on the Edge, priority given to calls over synchronisation, logs and AI.

An engineer in front of an open connection cabinet at the foot of a wall, the wire pairs still bare.

What actually happens

On the ground

A link almost never goes down cleanly.

It degrades. Throughput collapses at lunchtime, latency doubles when it rains, one packet in twenty is lost with nothing reporting a fault. A platform that only plans for all-or-nothing spends the day in the worst possible state: reachable, and unusable.

Throughput is measured continuously, not tested at installation.
The codec follows the measurement — Opus adjusts rather than saturating and then dropping.
Voice goes ahead of everything — synchronisation, logs and AI wait their turn.
Failover is a threshold, not a fault — the Edge takes over before the call becomes inaudible.

Order of priority

When bandwidth runs short, here is what gets sacrificed.

This order is written into the product, not left to the accidents of congestion. The AI never steals the resources telephony needs.

1. Calls in progress — nothing goes ahead of them.
2. SIP signalling — so that new calls can be set up.
3. Emergency calls — absolute priority on set-up, ahead of any other outbound call.
4. Handset provisioning, then call logs, then synchronisation, then analytics.
Last. The AI — transcription waits, indefinitely if it has to.

See the deployment modes

A 256 kbit/s link
Three simultaneous external calls in reduced-bitrate Opus, unlimited internal calls locally.
A saturated link
Log and recording uploads are suspended. The calls do not notice.
A cut link
The site switches to standalone. External calls take the local line if there is one.
A restored link
The backlog clears gradually, never monopolising bandwidth at the calls’ expense.

A person in a hard hat on the phone at the edge of a road, traffic blurred behind them.

The worst-connected site in your company is the one that needs the phone most.

It is also the one equipped last

Sovereign mode

When nothing may leave the site, absolutely nothing.

Some organisations cannot send a call log over the internet: classified sites, critical infrastructure, ships, operations in isolated areas. Konvoice exists in a version that needs no outbound link at all.

No network egress

The complete platform runs on your servers. No outbound calls to our systems, no telemetry, no online licence check.

Administration on site

The full console is served locally. Creating users, routing, reports, audit log: all of it is available without us.

Updates by physical media

Delivered signed on removable media, verified offline before being applied, with rollback if the site loses voice.

What you lose in sovereign mode Transcription and summaries, unless you deploy the models locally — which we know how to do, with the right hardware. Automatic updates. Our proactive monitoring: you see the alerts first. And off-site backup, which becomes your responsibility. We write it into the design document before signing, never after.

What we test

The degraded network is part of our tests, not part of our excuses.

Every release is put through deliberately bad network conditions before it is published.

Simulated condition	Expected	Verified on every release
400 ms latency	Calls set up and intelligible	Yes
5 % packet loss	Conversation understandable, no drop	Yes
120 ms jitter	Compensated by an adaptive buffer	Yes
Bandwidth capped at 128 kbit/s	Automatic reduction of audio bitrate	Yes
Total 30-minute outage	Internal calls maintained, no event lost	Yes
7-day outage	Full local operation, orderly resynchronisation	Yes
Carrier failover mid-call	New calls routed elsewhere, calls in progress preserved	Yes

400 msLatency at which calls remain usable

8 %Packet loss absorbed without dropping the conversation

128 kbit/sMinimum bandwidth for an external call

UnlimitedOffline operating time in sovereign mode

Questions about difficult networks

Do you work over a satellite link?

Yes, with the Edge. Satellite latency makes fully cloud telephony unpleasant to use; by keeping internal calls local, the link is only used for external calls and administration, which it handles well.

And on a plain 4G connection?

Yes, and it is a common backup case. An Edge can have fibre as primary and 4G as backup, with automatic failover. It can also run on 4G alone at sites that have nothing else.

How long can a site stay offline?

Thirty days with no licence check at all, and longer by configuration. In sovereign mode there is no limit: the notion of an online licence does not exist.

Do updates happen automatically in an isolated area?

Only if you want them to and if the link allows it. Many of our customers in isolated areas prefer to approve each release and deploy it during a chosen window. It is a setting, not an exception.

Describe your network to us. We will tell you what will hold.

Latency, bandwidth, usual outages, backup lines available. We answer with a costed architecture, and we tell you if we are not the right choice.

Talk to an engineer Book a demo

No commitment. No card number asked for.