Getting unknown ghost calls from codes like 100 or 1000 is quite a restless situation. It puts individuals in worry and apprehensions as to why are they receiving calls from an unfamiliar caller IDs. The situation gets even worse when the calls are attended and you find it blank from the other side.
Why do people receive mysterious calls?
It is because people who call find PBX and misuse the number. These types of calls are referred to as “ghost calling”. Hackers and attackers who are into scams and illegal actions use other numbers to steal a telephonic system.
Why exploitation is a norm in ghost calling?
Here, the question arises: why do they need to exploit and manipulate someone else’s information? Well, honestly, it is very easy to get traced by the hackers if the PBX is unsecured or the Cisco CME is left behind any security measurements.
Scammers, hackers, and attackers, also possess the ability to break down passwords easily. Leading it to make a call from your number. So, in total, only an hour was needed to not only find the password, detect the PBX number, but also to make a trunk call from your number.
What happens when exploiter/scammer finds out details of PBX?
Certainly, a lot of mutilation is expected in case of getting tricked by scammers and exploiters.
First and foremost, they will break into the system and call on international numbers. It will be something that you will get to know later. Also, only you will be held responsible for making international calls which will result in costing you an arm and a leg. Secondly, toll-fraud is also at risk which means they can commit a fraud that will put you in trouble.
Thirdly, they will dislocate authentic calls and receive calls from your system. This will surely infest your business badly.
Last but not least; vectors help attackers to find passwords and delicate details of your other networking systems. These all risks are more than enough to make you sure about the importance of safety and security that is needed all the time.
How to combat misuse of PBX and stop getting ghost calls?
Alleviating risks is prime need while executing a PBX system in the house, office, or anywhere else. Following ways could come as a guide.
Passwords: All extensions, as well as the accounts to login PBX, must and always should be strong enough. We highly recommend 8 to 9 characters with one cap letter and one digit.
Restricting routes: you should restrict routes for making an international call. If you will let it open, anyone can barge in and use the service. Passwords for routes is the second option.
Configuration access: it should be limited and making sure that nothing leads to it is the best way to combat ghost calls. Buying a separate firewall to host VPN is another idea of saying bye to the scammers.
LAN address: last but not least; connect all the systems to one LAN address which authorizes your IP address.