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Business Phone · Cloud PBX

A business phone that picks up every time.

Extensions, recording, and the AI receptionist that picks up when your team can't. Missed calls go to the next vendor — TKOS gives every seat a full cloud phone plus a 24/7 voice agent that books, qualifies and hands off warm.

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  • 100+ countries
  • Mobile + desktop apps
  • Instant activation
  • Keep your number
Line 1Incoming

Bosveld Mfg.

+27 11 555 0110

Desk phone

TKOS · Softphone
LD

Lerato Dlamini

IT Lead · On call

00:42
TransferRecordEnd
9:41

On call

Lerato Dlamini

00:44

Mobile

iOS · Android
1 login

Call flip

Desk → Mobile · 00:42

Live
What one seat unlocks

One seat, the entire phone system.

Every feature on day one — no upgrade tier. Pair seats with our AI receptionist agent so no call goes unanswered.

  • 01

    Unlimited domestic calls with CNAM

    Your company name on every outbound leg — not a random mobile number.

    Outbound

    TKOS · Bosveld Mfg.

  • 02

    4-digit internal dialing

    Finance reaches the warehouse floor in one tap. No card needed.

    Dial

    Dial 4210 · Warehouse

  • 03

    Voicemail with text transcription

    Transcripts land in the inbox you already live in — no app to check twice a day.

    Inbox

    3 new voicemails · transcribed

  • 04

    Call recording with audit-logged playback

    On-demand playback, retention you control, PCI pause-and-resume for regulated lines.

    Recording

    00:42 · encrypted

  • 05

    Shared lines across support teams

    No queue sits unmanned. Any agent can pick up the next ring.

    Line pool

    4 / 6 agents ready

  • 06

    Call screening before you pick up

    Accept, reject or send to voicemail — without interrupting the meeting you're in.

    Screen

    Intent · Sales · trusted

AI Receptionist

Stands in when your team can't.

Natural voice, handles FAQs, books callbacks, pushes transcripts to HubSpot, Zoho or Pipedrive — introduced by your business name. Dive into the UCaaS platform overview to see how it fits the wider stack.

  • 24/7 — weekends, after-hours, peak sales windows
  • Warm handoff with transcript + intent to a human
  • CRM sync live on day one · no Zapier required

AI Receptionist · TKOS

Handling inbound call · after-hours

Live · 00:38
  • Caller

    Hi, I'm calling after hours — can I reschedule my delivery?

  • AI

    Hi Priya, this is the TKOS receptionist. I can book that for you. Tuesday 10:30 work?

  • Caller

    Perfect. And can you text me the tracking link?

  • AI

    Confirmed — SMS on its way. Anything else before I hand over to Ops?

Transcribing

Booked

Tue · 10:30 AM SAST

Callback · Priya Shah · intent Billing.

Synced to HubSpot
Zoho · Pipedrive · HubSpot — live
Same number, every device

One login covers the whole stack.

Desk, laptop, mobile, headset — call flip moves a live conversation without a dropped beat. Switch to team chat when text is faster.

Built on the open SIP standard, so device choice stays with you.

Desk phone

SIP · auto-provisioned

Online

Laptop

macOS · Windows

Online

Mobile

iOS · Android

Online

Headset

Bluetooth · USB

Online
Call flip · live demo

Desk → Mobile, zero dropped beats.

Push a live conversation from your office handset to your car without telling the caller you're on the move.

From

Desk phone

To

Mobile

Customer Stories

Teams that never miss a ring.

From manufacturing floors to Sandton offices, operators run TKOS as the only phone their team needs.

LD

Lerato Dlamini

IT Lead

Bosveld Manufacturing

5.0

“Our warehouse manager takes calls on a headset in the yard, then pushes the same call to his desk when he walks back in. Zero dropped lines.”

Business Phone
AP

Anika Pillai

Head of CX

Sandton Retail Group

5.0

“The AI receptionist books callbacks while our team is on lunch. We stopped losing weekend sales overnight.”

AI Receptionist
TM

Tariq Mensah

Operations

Accra Logistics Co.

4.8

“Porting 68 numbers took one weekend. The team didn't even notice the cutover on Monday morning.”

Business Phone
NK

Noluthando K.

Support Lead

Cape Finance

5.0

“Shared lines mean no queue sits unmanned. I can see who's on what line from my desk at a glance.”

Business Phone
FAQ

Answers for the operators who sign off.

Practical questions from IT leads, ops managers and founders evaluating TKOS as their cloud phone.

Most Yealink, Grandstream, and Polycom SIP phones provision to TKOS in minutes. Our team ships auto-provisioning configs on request.

Get A Free Trial

Every ring, answered. Every after-hours call, captured.

Spin up your first 20 seats without paperwork, keep your current handsets, and let AI Receptionist cover the hours your team doesn't.

Get A Free TrialSee Pricing
Free numberKeep your handsetsDeploy 20 seats without paperworkAI Receptionist on every line
TKOS — Tech Knowledge Open Systems

Africa's #1 Dynamic & Reliable Telecom Leader

Cloud phone, AI contact center and unified communications on one tier-1 SA telecom network.

Platform

  • UCaaS Platform
  • Hosted Phone System
  • AI Contact Center
  • TKOS AI Suite
  • Business SMS & MMS
  • Online Fax
  • HD Video Meetings

Solutions

  • Sales Teams
  • Support Teams
  • Remote Teams
  • Healthcare
  • Retail
  • Financial Services
  • Logistics

Features

  • Auto-Attendant & IVR
  • Call Recording
  • Conversation Intelligence
  • AI Sentiment Analysis
  • AI Virtual Assistant
  • Sales Call Intelligence

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