Toll fraud is the other major issue for VoIP users.

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The way to guard against this is to employ some form of traffic analysis. This can identify abnormal patterns of requests and either automatically block the attacker or notify admins to take appropriate action.

Toll fraud
Again detection can cambodia telegram help by alerting you to unusual patterns of traffic or a rise in calls to unfamiliar geographic destinations. You can also use the admin functions of your PABX to restrict call destinations for users or user groups.

This involves hackers stealing time on your network to make calls on your account. Usually, this type of attack starts with unauthorised access, so it’s vital to ensure your account passwords are strong and not used elsewhere.

Policy
We can’t leave this topic without looking at the issue of policy. It’s important to lay down guidelines for the use of VoIP systems and monitor systems to ensure that these are observed. In certain industries – financial services for example – you may also need to follow specific compliance rules, such as recording calls and storing the data for a fixed time period.