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Cloud PBX (PABX) & unified communications. Hosted in South Africa

Cloud PABX from FirstNet: Yeastar P-Series, Microsoft Teams calling or Zoom Phone on FirstNet's carrier-grade voice network, with one managed contract for the PBX, SIP trunking, numbers and porting.

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Managed Cloud PBX product sheet (PDF)

AI Receptionist product sheet (PDF)

AI Transcription product sheet (PDF)

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From the newsroomCalls answered around the clock by FirstNet's AI receptionistRead the article 

Cloud PBX in South Africa. Managed by FirstNet

FirstNet runs cloud PBX in South Africa as a managed service, part of its voice as a service range. Choose from three enterprise-grade platforms: Yeastar Cloud PBX (P-Series), hosted in South Africa; Microsoft Teams calling with Operator Connect or Direct Routing; and Zoom Phone & Zoom Contact Centre. Each platform is backed by our ICASA-licensed, carrier-grade voice network and national support.

Watch: Ditch the dinosaur

Is your phone system still living in the Stone Age? Yeastar hosted PBX from FirstNet gives you smarter business calling, flexible features and communication that moves at the speed of your business.

  • Hosted in the cloud and managed by FirstNet
  • No service call every time an extension moves
  • Flexible calling features that grow with your business
Opening frame of the Cloud PBX video with Ushika Gayapershad: FirstNet logo and Technology. Elevated

Ushika, FirstNet

Read the transcript

Is your business phone system still living in the Stone Age? Does it need a service call every time someone sneezes? Does moving an extension feel like organising a moon landing? Come on, it's 2026. Yeastar hosted PBX from FirstNet: smarter business calling, flexible features and communication that moves at the speed of your business. No dinosaurs, no unnecessary drama, just a smarter way to keep your business connected. Yeastar. Ditch the dinosaur. Get your business talking. Now that's elevated. I'm Ushika from FirstNet. Give us a call to find out more.

Three platforms. One carrier-grade voice network

FirstNet runs each platform on its own voice network, as a single provider for voice minutes, SIP connectivity, deployment, number porting and support.

Yeastar P-Series cloud PBX

Best if you

need a modern cloud PBX to replace outdated telephony hardware, on one site or many

Calls happen in

softphone and mobile apps for hybrid and remote teams

Highlights

hosted in South Africa; call queues, IVR, recording and reporting; AI receptionist and AI transcription add-ons

Microsoft Teams calling

Best if you

want Teams as your single communication platform

Calls happen in

Microsoft Teams, on any device

Highlights

Operator Connect or Direct Routing; South African numbers and porting supported

Zoom Phone & Contact Centre

Best if you

already use Zoom Meetings, or need rapid deployment across teams

Calls happen in

Zoom Meetings and Chat, desk phones, softphones and mobile

Highlights

Zoom Contact Centre for omnichannel service, with intelligent routing and real-time analytics

Already on Microsoft Teams but need a real contact centre? Keep Teams as the user interface while FirstNet runs queues, IVR and recording underneath.

Why FirstNet for cloud voice. Cloud PBX, Teams, and Zoom voice solutions

FirstNet delivers these platforms on top of a carrier-grade voice network engineered for uptime, quality, and secure call routing. Organisations benefit from a single provider for voice minutes, SIP connectivity, platform deployment, number porting, and ongoing support.

  • One managed contract for the PBX, SIP trunking, numbers and porting
  • Certified provider for Microsoft Teams Operator Connect
  • Managed migration from legacy PBX systems
  • Local support and engineering teams
  • Fraud protection, analytics and routing optimisation
  • Scalable for SMB, mid-market and enterprise workloads

Why choose FirstNet and Yeastar. Yeastar P-Series cloud PBX for SMB and enterprise

Yeastar P-Series Cloud PBX is a full unified communications system that replaces traditional PBX hardware with a secure, cloud-hosted platform. Businesses gain voice, video, messaging, mobility, call centre features, and analytics, all in a single solution.

Glass cloud inside a transparent cube, representing hosted cloud PBX

Why Yeastar cloud PBX?

  • Cloud PBX hosted in South Africa for low latency and reliability
  • Unified Communications: voice, video, chat, presence, collaboration
  • Softphone and mobile apps for hybrid and remote teams
  • Call queues, IVR, recording, reporting, monitoring
  • Simple migration from legacy PBX systems

Ideal for companies that need

  • A modern cloud PBX to replace outdated telephony hardware
  • Multi-site communication with central management
  • Remote workforce support without complex VPNs
  • Enterprise-grade telephony features at SME pricing

Assessment & Design

Call flows, numbering plans, and integration needs.

Deployment

Staged rollout with coexistence options for complex sites.

Adoption

Training and quick-reference guides for admins and users.

Operations

SLAs for availability and support responsiveness.

Moving off your old PBX

FirstNet designs, ports and runs the service as one managed contract covering the PBX, SIP trunking, numbers, softphones and AI add-ons, with one bill and one escalation path.

Side-by-side cutover

Old and new systems run in parallel while users move in waves. Suited to larger or more complex estates.

Big-bang cutover

Everything moves in a single weekend or after-hours window. Suited to smaller sites.

Proven sources

Migration paths cover on-premises PBXs, 3CX, Mitel and similar systems, with full number porting.

Teams front end

Keep Microsoft Teams as the user interface while FirstNet runs real queues, IVR and recording underneath.

Watch: Never miss a call

What if every call to your business was answered instantly and professionally? The FirstNet AI Receptionist, built into your Yeastar cloud PBX, answers 24/7 and gives you a professional front desk even when the team is busy.

  • Directs callers to the right department
  • Answers common questions
  • Captures every enquiry when the team is busy
  • No more missed calls or voicemail frustration
Denver Govender introduces the FirstNet AI Receptionist

Denver, FirstNet

Read the transcript

What if every single call to your business was answered instantly, professionally, and never left waiting? Well, I've got a solution for you. Meet the Yeastar AI Receptionist. It's backed by several AI models, with the intelligence to answer every call 24/7. It directs customers to the right department, it answers common questions, and it captures every single enquiry when the team's busy. That means no more missed opportunities, zero voicemail frustration, and a vastly smarter, more efficient customer experience. It gives you a professional front desk that's available 24/7, and you get a fully integrated PBX. So never miss a call, never miss an opportunity. Discover the AI Receptionist with FirstNet today. I'm Denver Govender, Senior Voice Engineer at FirstNet Technology Services. Click on the links to learn more.

The details

FirstNet AI receptionistAn AI digital receptionist that answers calls 24/7 on your Managed Cloud PBX.

FirstNet AI receptionist

An AI digital receptionist that answers calls 24/7 on your Managed Cloud PBX. It understands what callers want in natural language, answers from your own content, and routes, queues or hands over to a person when needed.

  • Natural-language answering with intent-based routing to menus, queues or extensions
  • 34 supported languages with a customisable voice, tone and persona
  • Trained on your PDFs, documents, website pages and FAQs
  • Hands complex or sensitive calls to a human agent in Linkus
  • Every call produces a transcript and AI summary
  • Ideal for after-hours, overflow, holiday cover and high-volume routing

Create

Set up an AI Receptionist extension on your PBX.

Customise

Choose the voice, tone, persona and languages callers will hear.

Train

Load your knowledge base: documents, website URLs and FAQs.

Test & publish

Run sample calls, confirm escalation rules, then go live.

FirstNet AI transcriptionReal-time and post-call transcription turns conversations into searchable text, with an AI summary of key topics, decisions and action items.

FirstNet AI transcription

Real-time and post-call transcription turns conversations into searchable text, with an AI summary of key topics, decisions and action items. It is built for coaching, quality review and follow-up rather than regulated compliance recording.

  • Live transcription during calls, plus recorded calls and voicemail
  • AI summary of topics, decisions and action items
  • Speaker identification on multi-party calls
  • Searchable call logs inside the PBX portal
  • For audit-grade recording, pair with FirstNet Compliance Recording

Cloud PBX & Unified Communications questions

Straight answers from the FirstNet team.

Read every answer in the Knowledge Hub
Is FirstNet's cloud PBX hosted in South Africa?

Yes. FirstNet Managed Cloud PBX runs on Yeastar P-Series hosted in South Africa, for low latency and reliability. Calls run on FirstNet's own ICASA-licensed (ECNS / ECS) voice network, with interconnects to all major South African operators, so your geographic numbers terminate directly rather than through another operator's licence.

One managed contract covers the PBX, SIP trunking, numbers, porting and support, and existing numbers can be ported in with a signed Letter of Authority.

What is a cloud PBX?

A cloud PBX is a hosted phone system that provides business calling, collaboration, and unified communications features without on-site hardware.

Full answer in the Knowledge Hub

Is a cloud PABX the same as a cloud PBX?

Yes. PABX and PBX are two spellings of the same business phone system. FirstNet's cloud PABX is a managed cloud PBX hosted in South Africa on Yeastar P-Series, Microsoft Teams calling or Zoom Phone, with one contract for the PBX, SIP trunking, numbers and porting.

Is Yeastar P-Series a cloud PBX?

Yes. Yeastar P-Series offers a full cloud PBX solution with UC features, mobile apps, and call centre capabilities.

Full answer in the Knowledge Hub

Can Microsoft Teams be used as a phone system?

Yes. With Operator Connect or Direct Routing, Teams becomes a complete business phone system that supports PSTN calling.

Full answer in the Knowledge Hub

What is the difference between Operator Connect and Direct Routing?

Operator Connect is simpler, cloud-managed, and requires no SBC infrastructure. Direct Routing offers greater control and flexibility for complex environments.

Full answer in the Knowledge Hub

Does Zoom Phone work in South Africa?

Yes. FirstNet provides voice connectivity and deployment services for Zoom Phone and Zoom Contact Centre in South Africa.

Full answer in the Knowledge Hub

Can I migrate from my legacy PBX?

Yes. FirstNet manages number porting, configuration, and phased rollout to minimise disruption.

Full answer in the Knowledge Hub

Will callers get stuck talking to a bot?

No. The AI Receptionist uses natural language rather than keypad menus, and hands complex or sensitive calls to a human agent in Linkus. The agent sees the transcript and summary, so callers do not repeat themselves.

Full answer in the Knowledge Hub

Does the AI Receptionist replace our receptionist?

It is designed as the 24/7 layer behind your front desk. Use it for after-hours, overflow, holiday cover and high-volume routing, while your receptionist handles the relationship calls.

Full answer in the Knowledge Hub

Can the AI Receptionist book appointments or update our CRM?

Out of the box it answers, routes, escalates, transcribes and triggers voicemail-to-email or callback flows. Deeper actions such as calendar bookings or CRM updates are scoped per customer during setup.

Full answer in the Knowledge Hub

Is AI Transcription enough for FSCA or POPIA recording?

No. AI Transcription is a productivity tool. Regulated, audit-grade recording with retention and legal hold is provided by FirstNet Compliance Recording.

Full answer in the Knowledge Hub

Can we port our numbers back out if we leave?

Yes. Geographic and non-geographic numbers can be ported in and out, and the service is built on standards-based SIP.

Full answer in the Knowledge Hub

Is call recording included?

Yes. Call recording, IVR, call queues, standard reporting and Linkus mobile and desktop softphones are part of the core Managed Cloud PBX service.

Full answer in the Knowledge Hub

What is an AI receptionist?

An AI receptionist is a virtual receptionist that answers calls 24/7 and understands what callers say in natural language. FirstNet AI Receptionist, also called the Digital Receptionist, works out the caller's intent, answers from your own knowledge base and acts on the call: it routes to a department, queue or person, captures a callback or hands over to a human agent. Each call is logged with a transcript and AI summary.

Full answer in the Knowledge Hub

How many languages does the FirstNet AI Receptionist speak?

FirstNet AI Receptionist supports 34 languages. You can customise the AI voice, including gender, tone and persona, so it sounds like your brand. The languages your callers actually use are confirmed during scoping, which suits businesses with multilingual customers such as logistics, retail and public-sector lines. Intents that are complex or sensitive are escalated to a human agent in the Linkus app.

Full answer in the Knowledge Hub

How is the AI Receptionist trained on my business?

You train it on your own content: PDFs, documents, website URLs and FAQs. Setup follows a four-step wizard: create the AI Receptionist extension, customise the voice and persona, train it on your knowledge base, then test and publish. A good start is listing the top reasons people call, deciding which intents should always go to a person, and preparing five to ten test scenarios before going live.

Full answer in the Knowledge Hub

What does AI call transcription do?

FirstNet AI Transcription turns calls into text, both live and after the call, and writes an AI summary of key topics, decisions and action items. It identifies speakers on multi-party calls and transcribes voicemail, and calls are searchable in the Managed Cloud PBX portal. It is a productivity tool for sales coaching, support quality and management review. It does not replace regulated compliance recording.

Full answer in the Knowledge Hub

How are AI Receptionist and AI Transcription minutes billed?

There are two models. On Demand is a once-off bucket of minutes that does not expire monthly and is used until depleted. It suits seasonal, campaign or after-hours-only use and pilots. Monthly Rolling is a monthly minute quota on a 12-month contract that refreshes each month, with unused minutes not rolling over. It suits always-on use. Each add-on can use a different model.

Full answer in the Knowledge Hub

What features does a managed cloud PBX include?

FirstNet Managed Cloud PBX includes extensions, call routing, voicemail, hold music and presence, plus IVR menus, call queues, call recording and standard reporting. Mobile and desktop softphone apps, SIP trunking with local South African termination, number porting, standard support and platform operations are part of the per-user service. Microsoft Teams integration, CRM integrations and contact-centre wallboards are available as add-ons.

Compared with an on-premises PBX, there is no hardware or maintenance burden, softphones and mobile apps let people work from anywhere, admin portals keep control simple and policy-based, and the geo-redundant platform runs with monitored uptime.

Full answer in the Knowledge Hub

Can I use my mobile phone as my office extension?

Yes. The Linkus mobile and desktop apps let you make and receive calls on your business number from anywhere, whether you are in the office, on the road or working from home. Callers see the same office number, and calls can reach you through the same queues and routing as a desk phone. This suits hybrid and distributed teams that no longer want phones tied to a desk.

Full answer in the Knowledge Hub

Can a cloud PBX integrate with our CRM?

Yes. CRM integrations with Halo, HubSpot, Salesforce and similar systems are available as add-ons to FirstNet Managed Cloud PBX, alongside contact-centre reporting and wallboards. With AI Transcription, the call summary can sit alongside the call record for follow-up. Deeper AI Receptionist actions, such as updating CRM records or booking calendar slots, are scoped for each business rather than offered as standard.

Full answer in the Knowledge Hub

Stacked glass layers, FirstNet's five-layer platform

Where voice fits

Enriched by Sovereign AI: turn call recordings into structured, searchable data on the AI Factory; the recordings never leave South Africa. Explore the AI Factory

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