Fraud & Cost Prevention for Landlines

Landline fraud occurs when unauthorised users access a business phone system to make chargeable calls, often to international or premium-rate numbers. This can quickly lead to unexpected costs and operational disruption.

According to the UK Government’s fraud strategy, fraud is now the most common crime in the UK, costing £14.4 billion annually. Without proper safeguards, suspicious activity can go unnoticed until charges build. Implementing controls through a business phone system helps reduce exposure and maintain reliability.

Phone fraud is increasing as more businesses rely on internet-connected systems. The UK Government reports that 1 in 4 businesses experienced fraud in the past year, showing how widespread the issue has become.

Telecoms systems are a common entry point, as attackers exploit weak configurations or limited monitoring. Ensuring your systems are properly secured and supported through managed IT services helps reduce risk and improve resilience.

Most business phone fraud follows recognisable patterns, particularly where systems are not actively monitored.

Common examples include:

• Toll Fraud: Repeated calls to high-cost international numbers.
• PBX Hacking: Unauthorised access to your phone system.
• Call Forwarding Fraud: Redirecting calls to premium-rate numbers.

Using secure VoIP phone systems with monitoring and restrictions helps reduce exposure to these threats.

Landline fraud prevention works by combining monitoring, usage controls, and fast response actions. It helps identify unusual behaviour before it leads to high costs or disruption.

A typical system includes:

• Real-time monitoring of call activity.
• Alerts for unusual or out-of-hours behaviour.
• Immediate actions, such as call barring or access control updates.

When combined with IT security services, this approach helps protect both your phone system and wider business infrastructure.

Preventing phone fraud requires a proactive approach focused on control and visibility.

Key steps include:

• Setting call limits and restricting high-risk destinations.
• Using strong passwords and keeping systems up to date.
• Continuously monitoring activity to detect unusual behaviour early.

The National Cyber Security Centre highlights that internet-facing systems must be actively secured, not just patched. A free report and bill analysis can help identify vulnerabilities and reduce risk.

Yes, VoIP and cloud phone systems can be targeted if they are not properly secured. Because they are internet-connected, they can be vulnerable to unauthorised access if monitoring and access controls are limited.

However, with the right setup, these risks are manageable. Secure phone systems with ongoing monitoring and configuration checks significantly reduce the likelihood of fraud.

There are several clear warning signs that your phone system may have been accessed without permission:

• Sudden increases in call costs without explanation.
• Calls to unfamiliar international or premium-rate numbers.
• Unusual activity outside normal working hours.

Without monitoring, these issues can go unnoticed until the billing cycle is complete. Regular checks and support through landline services help identify problems early.

If your phone system is compromised, acting quickly helps limit damage and prevent further misuse. Immediate steps include restricting outbound calls, updating access credentials, and reviewing recent activity.

Identifying how the breach occurred is key to preventing repeat incidents. Working with a provider of business IT support ensures your system is secured properly and restored with minimal disruption.

Phone fraud can generate high costs within hours. Once access is gained, attackers may place continuous calls to premium-rate or international numbers, often outside business hours.

Without monitoring, this activity can continue until billing thresholds are reached. Having safeguards in place, alongside reliable connectivity such as leased lines for businesses, helps detect and respond to issues more quickly.

Yes, small businesses are often targeted because they may have fewer security measures in place. Even a single incident can result in significant financial impact and disruption.

Protecting your phone system helps maintain consistent communication and avoid unexpected costs. Implementing safeguards alongside small business telephone systems ensures your setup remains secure and reliable.