What or are there any advantages to using PSTN? More specifically, what advantages does PSTN have over VoIP, if any?
The public switched telephone network (PSTN) is the network that supports legacy phone service. Most, if not all, businesses were or still are using this network. Those that are no longer using PSTN have most likely made the switch to VoIP. PSTN is still the dominant mode for businesses, although VoIP adoption has been steadily growing. The main benefit of VoIP over PSTN is lower cost, but the trade-offs are many, all of which speak to the inherent qualities of the PSTN.
PSTN is a purpose-built network, designed and perfected for one thing: telecommunications. Since the PSTN was never intended to support any other type of traffic, it handles telephony very well. Key virtues of PSTN include pristine quality, nearly 100% uptime, highly private and secure connections, and the ability to scale and support large volumes of traffic. VoIP is designed to work on a data network and, by its nature, cannot match the PSTN in these areas. VoIP technology has come a long way, and while it's good enough for businesses to rely on, there will be some compromises that come with the cost savings.
For more information:
- View SearchUnfiedCommunications.com's PSTN vs. VoIP tech comparison.
- Understand how legacy voice attitudes are holding back unified communications.
- The PSTN moves into retirement as VoIP heats up.
Have a question for our IP telephony expert? Email your questions to email@example.com.
Dig Deeper on VoIP Migration and Implementation
Related Q&A from Jon Arnold
Expert Jon Arnold explains the meaning of a per-seat license in terms of how it applies to unified communications software.continue reading
Is a PBX system required when organizations move to VoIP? Or do they need to replace it? Telephony expert Jon Arnold explains the options available ...continue reading
For employees who work out of the office, are softphone clients or mobile phones the best option? Telephony expert Jon Arnold explains the difference...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.