At KatSar Systems, we believe the choice between VoIP and PSTN is up to the person or company doing the implementation. A VoIP PBX system usually has strong advantages in cost but requires broadband internet connectivity, while the PSTN incorporates landlines, cellular phones, and more. Good business solutions enable PSTN telephony, as well as Voice over IP. Every KatSar Systems system supports both, in any configuration. Have questions about your particular setup? Not sure where to start? Give us a call at 516-366-0979! Our teams are standing by to help you start saving money with VoIP.