The first step to preventing this is to make sure

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Like any system that relies on communication over the internet, VoIP is vulnerable to the threat of cyber attack. Many attacks against these systems make use of the Session Initiation Protocol (SIP) which is the most commonly used in the VoIP sphere.

Whether you have canada telegram already made the switch to VoIP therefore, or are considering it, security is something to which you need to give serious thought. Fortunately, there are some simple and effective steps you can take.


Password protection
Most businesses adopt VoIP in order to save money through advantageous wholesale VoIP termination rates from specialists such as IDT. The last thing you want to be doing, therefore, is paying out for calls made by other people on your account. Service theft is one of the most common attacks on VoIP systems, wherein hackers attempt to access your system and use it to make calls. Misuse can be limited by restricting certain dialling codes for example, but this is no excuse for ignoring good basic security.

that you enforce a policy of strong passwords. This applies not just to the VoIP system but also to your endpoints and to your admin accounts. Replace any default logins as these are the first port of call for hackers.