Scalable Cloud PBX & Business VoIP Solutions

Microsoft Teams & VOIP Solutions South Africa

At ISN, we design enterprise-grade communication systems tailored for efficiency.

From Microsoft Teams Telephony to Hosted VoIP, we provide redundant, low-cost systems that keep your business connected anywhere in the world.

UNIFIED COMMUNICATIONS AND VOICE FEATURES

Our communication ecosystem is designed to bridge the gap between traditional telephony and modern digital workflows. Whether you are looking for a cloud-based phone system or a hybrid on-premise solution, we deliver big-business features as standard.

MICROSOFT TEAMS INTEGRATION

Turn Microsoft Teams into a full-featured business phone system. Our Teams Direct Routing allows you to make and receive external calls directly from the Teams interface on your desktop or mobile device.

VOIP & TELEPHONY

Reduce your monthly spend with our high-quality VOIP services. We provide crystal-clear voice quality, low call rates, and the flexibility to scale extensions up or down as your business grows.

SMART CALL MANAGEMENT

Enhance customer experience with professional Auto Attendants, Agent Queues, and Music on Hold. With integrated Call Recording and CRM connectivity, your team has the data they need to close deals and support clients effectively.

We supply and support a wide range of hardware to suit every role in your organization:

  • Executive Receptionist Phones: High-traffic consoles for seamless call handling.
  • Wireless & Cordless IP Phones: Mobility for warehouse and retail staff.
  • Boardroom Conference Phones: 360-degree audio for professional meetings.
  • Softphones & Mobile Apps: Use your office extension on your smartphone or laptop.

We have over the years built Enterprise systems for our customers and today we can replicate these in the cloud. This provides our customers efficient, low cost, redundant systems that are either hybridized in the cloud and on premise or totally one or the other. We use the latest technology on the network and on the back end.

Features

Auto Attendant
Voicemail to E-mail
Call Pick-Up
Agent Queues
Music On Hold
Reporting
VOIP
Teams Integration

Applications

Call Recording
Access Control
CRM Integration
PA Systems
Telephone Management System

IP Phones

Receptionist Phones
Desktop Phones
Cordless Phones
Conference Phones
Soft Phones

Frequently Asked Questions about Cloud PBX

What is a Cloud PBX?

A Cloud PBX (Private Branch Exchange) is a phone system that runs over the internet instead of traditional copper phone lines. It offers more flexibility, lower costs, and requires no physical hardware on-site.

Can I keep my existing phone number?

Yes, ISN provides full number porting services in South Africa, allowing you to move your existing geographic numbers to our VoIP platform without any downtime.

Does ISN support Microsoft Teams calling?

Absolutely. We specialize in integrating voice into Microsoft Teams, allowing your staff to use a single application for chat, meetings, and external phone calls.