5 min read

VoIP Security for Small Businesses: What You Need to Know

Published on

31 July 2025

Why VoIP Is Right for Small Businesses

Switching to a VoIP (Voice over Internet Protocol) phone system offers small companies in East Grinstead and the wider South East huge benefits. It replaces traditional landlines, cuts call costs, and brings flexibility, helpful for remote or hybrid teams.

At Ashdown Solutions, we deploy a 3CX-based cloud VoIP system that’s cost-effective, quick to install, and packed with features like call forwarding, mobile/desktop apps, and video conferencing, all without sacrificing security.

The Local Impact: The Big Switch Off 2025

With traditional ISDN and copper telephone lines phasing out by 2027, now is the time to transition smoothly. We can guide you through a stress-free upgrade to a future-ready VoIP setup, often before your current contracts end, saving you money long-term and avoiding disruption

The Hidden Risks of Unsecured VoIP Systems

VoIP systems, like any internet-connected service, can be targeted by cybercriminals. Some of the most common threats include:

  • Toll fraud: Hackers take over your phone system and make expensive international calls, leaving you with the bill.
  • Call spoofing: Attackers pretend to be someone else, tricking your staff or customers.
  • Eavesdropping: Unencrypted VoIP traffic can be intercepted, exposing sensitive information.
  • DDoS attacks: Overwhelming your VoIP service, making it unavailable when you need it most.

These threats don’t just affect large companies. Small businesses are often easier targets because they lack dedicated IT security staff. That is where we come in.

VoIP Benefits from Ashdown’s Perspective

Our cloud-based 3CX system offers:

  • 🎯 Quick, low-disruption setup so your business starts benefiting immediately
  • 🔧 A feature-rich platform with voicemails, call recording, video chat, and auto-attendant functionality
  • 📱 Seamless remote access: use the desktop or mobile VoIP app to make business calls from anywhere with your company number
  • 🔐 Certified security built-in to keep communication safe and sound

Secure Your VoIP System with These Best Practices

VoIP offers amazing convenience, but it also comes with risks if not properly configured. Here’s how we help small businesses stay secure:

  1. Strong Passwords Only: All default credentials are changed. We enforce unique, complex passwords for every device and user.
  2. Keep System Software Updated: We apply regular firmware and software updates, closing security gaps quickly.
  3. Encrypt Your Calls: Protocols like SRTP ensure your voice traffic stays private and protected.
  4. Enable Firewalls & IP Controls: We limit access to trusted networks only, reducing exposure to call hijacking or toll fraud.
  5. Monitor Call Activity: Regular audits spot suspicious patterns early; saving you time, reputation, and money.

Why Local Businesses Trust Ashdown Solutions

Based in East Grinstead, we support businesses across East Sussex, West Sussex, East Surrey, and West Kent with managed IT and VoIP solutions. Our strengths include:

  • Experience in delivering IT support tailored to small and medium businesses
  • A human-centred, jargon-free approach to IT and communications
  • Fast, trusted service, you won’t end up in an impersonal call centre
  • Expertise across IT support, Cyber Security, Connectivity, and VoIP systems

VoIP & Cybersecurity: Keeping Your Business Protected

At Ashdown Solutions, our service goes beyond installation. We pair VoIP with Cyber Essentials and network security measures, ensuring your communication systems are truly secure. Our approach is proactive, meaning we work to stop problems before they happen.

Ready to Make the Switch?

Don’t let outdated systems hold your business back. Protect your communication infrastructure with a secure, locally supported VoIP setup. Whether you’re ready to fully switch or simply want advice, we can help.

📞 Contact us today for a free VoIP security review
Or learn more about our managed VoIP and Cyber Security service packages for small businesses in the South East.

Ashdown Solutions Ltd
Managed VoIP, IT, & Cyber Security for More Secure, Connected Business Communications
www.ashdownsolutions.co.uk | Covering East Sussex, West Sussex, East Surrey & West Kent