vertical sbx ip call forwarding to an external number video

#Vertical sbx ip call forwarding to an external number video manual

You may be able to limit access to international dialing on a per-extension basis using class-of-service. Keep the phone system behind locked doors and control access. On all phone systems, practice good physical security. Train staff so they refuse to transfer callers to the modem extension unless the password is given. You should have a spoken password established with your vendor that they must provide to be allowed modem access. Human engineering comes into play here again. That is, someone has to call in and request to be transferred to the modem.

#Vertical sbx ip call forwarding to an external number video manual

Typically, however, phone systems require manual intervention to connect to a programming modem port. Modem access can still be a target and one of the best ways to protect yourself is to set up call-back on any modems connected to outside phone lines.

The Traditional Phone System:īecause the legacy phone system has limited (if any) network connectivity or functionality, there is little the hacker can do to gain access to the programming interface. Because the attack vectors vary so widely, I will discuss them by platform type. But the method here is to set up call forwarding in the phone system so any incoming call is redirected to an International Long Distance access number. The goal is still to gain access to those free minutes. Hackers also target traditional phone systems, IPPBXs and cloud telephony services. But there are other targets for the hacker in today’s business communication infrastructure. In Part I, we learned how phone hackers target voice mail systems to steal and resell long distance minutes to countries with costly per-minute charges.