Release & Upgrade
Release Notice for RMS V2.5.24
Release Notice for UMSV1.1.41
Finder v1.0.9
OM50G V177 P2.2
OM20G V177 P2.2
NeeHau Client V2.0.0.23 (with OM20/20G/50/50G)
OM20G V177 P2
OM50G V177 P2
OM80E V177 P3

What is the purpose of SIP in VoIP?
The Difference Between PBX And PSTN
What Is The Meaning Of Hosted Pbx ?
How Do You Choose An IP PBX For Your Small Business?
How To Install New Rock OM20 IPPBX-OM20g Installation
Why are PBX's Becoming VoIP Based?
What's the Meaning of PBX And How does a PBX system work?
How Is Ip Pbx Different From Traditional PBX?
How does a hotel phone system work?
What is PSTN gateway?
Is VoIP Phone worth it for a small business?
The Difference Between A Ip Phone And A Voip Phone
Can you use your old phone with VoIP?
What Is The Sip Response Code?
What is VoIP Server And How a VOIP Server Works
What is SIP 500 error
What Is Voip Gateway
Ip-pbx Vs Voip Gateway
Best PBX Phone System Features for Businesses
How to Setup a VoIP System in Office
PBX Software Features
Traditional IP PBX configurations
How to choose business telephony system
IP PBX vs. Traditional PBX
PBX IP PBX and VoIP technology Advantages
Guide to Business VOIP PBX
PBX phone systems for small businesses
How Does a SIP Gateway Work?
SIP, VOIP & IP Phones
VoIP Phone Systems - Create the Perfect Business Phone System
What Is a PBX Phone System
How much business Phone System
What is a PBX System
Why use VOIP
What are the advantages of VoIP services
FXO/FXS Gateways
Which Voip Phone System Is Right for Your Business
How do I choose a VoIP provider
Flexible Hotel Phone Systems From New Rock
How Can VoIP Help Hotels Cut Cost
Hospitality Technology Solutions
Modern phones for hotel rooms
VoIP to the hospitality industry
Hotel phone system improves hotel service experience
Why is a Hotel Phone System Important
How Hotel Phone Systems
The Importance Of Using Hotel Phone System
Hotel VOIP telephone system
Small Hotel Phone System for up to 50 Rooms
How Hotels Use a PBX Phone System

Application Notes
How to Integrate MX Gateway with OM IP-PBX
Interconnect Two PBXs with FXO Gateways
Interconnect Two or More Extension Lines with FXS Gateways
Connecting MX100G-S SIP-ISDN Gateway to Elastix
Connecting MX100G-S SIP-ISDN Gateway to Asterisk
Expanding PBX Extensions to Remote Sites through IP Network
Multi-site Configuration for Gateways with Analog PBX
How to Troubleshoot Caller ID Detection Issues on FXO Port
Security Configuration Guide for New Rock OM Series IP-PBX
Connecting FXO Gateway to Asterisk
Connecting FXO Gateway to Elastix
Tie Trunk Configuration for OM with Elastix

Training Materials
What is VoIP gateway?
What’s the Difference between VoIP Gateway and SIP Trunk?
Smart Switchboard Introduces Exclusive Premium Customer Services
What's the Difference Between VoIP Gateway and ATA?
What's the Difference Between VoIP gateway and SBC?
New Rock’s New Gateway Security measures
Global VoIP Gateway Service Provider
How to Setup VoIP Gateway - A Complete Installation Guide
What is HX&MX VoIP Gateway Default Password?
Auto Provisioning
Six Practices for Audio Security
“PSTN failover” - Strong Support for High-availability IP Audio Communications
New Rock IP-PBX: Your All-In-One IP Office Telephony System
Connecting E1/T1-Based PBX to IP Telephony Networks
Popular IP-PBX Features Favored by Highly Efficient Officers
Five-star Customer Services
Top Three Advantages of Gateways with Imbedded VPN Clients
Low-Cost, High-Quality Gateway
Smart FoIP
Two Typical Applications for Telephone Networks
IPv6’s Top Three Advantages in VoIP Applications
MX100G-S SIP-ISDN Trunking Gateway Training
MX Series VoIP Gateway Training


Installation & Maintenance
OM SIP Trunk Configuration Documentation
NAT Traversal Service---Configuration video
User Guide for Finder V1.0.9
IP-PBX Installation (Video)
OM20G&OM50G Quick Installation Guide
OM80E Quick Start Guide
OM200G Quick Start Guide
OM500 Quick Installation Guide
HX4G&MX8G Quick Reference Guide
MX60E Quick Installation Guide
MX120G Quick Installation Guide
MX100G-S Quick Start Guide
SX3000 Quick Installation Guide
PT2400 Quick Installation Guide
PT4800 Quick Installation Guide

Marketing Materials

The Difference Between PBX And PSTN
Update Time:2021-10-13 17:39:55 Browse Times:816 Amount Downloads:1

There is a subtle, yet importance difference between PBX and PSTN.It is so hard to tell the difference between PBX and PSTN for many people.Next I will help you solve the problem.

First let’s define each:

What is PSTN?

PSTN stands for Public Switched Telephone Network and is just a fancy name for the traditional telephony we are all familiar with – where telephones are connected to dedicated networks.

As long as you know the correct telephone number, these networks allow you to call another person anywhere on the network. It’s also commonly referred to as POTS - plain old telephone system.

Getting more technical - PSTN is the collective switches and all the infrastructure (telephone lines, fiber-optic lines, and underground cables) that make up phone access across the world.

The PSTN is also further connected by Tandem Offices, and Toll Offices which increase the range of calls at a further cost. These allow for Long-Distance, and International Calls to take place.

On that point, this is also why most businesses prefer to use VoIP, so that they don’t get hit with long distance overage charges, especially for making international calls.

What is PBX?

PBX means Private Branch Exchange and is the “switch” in an organization’s premises that routes calls internally and externally to the PSTN/POTS.

In very plain terms, PBX is the software or hardware solution that manages phone calls for a building or campus.

The PBX system tells every phone on-site what their extension number is, and routes calls based on phone number, if the location has more than one.

A PBX may have other features as well - such as hosting an automated attendant, playing hold music, managing all internal calls, building groups of phones that ring simultaneously, and even queueing calls for a call center.

So, what’s the difference between PBX and PSTN?

The surprising answer is mostly in the scope. Both are switching services that move calls to their final destination. This can be done using software, or hardware solutions.

The main difference is that PSTN does what a PBX does, but over a much wider area - essentially, it finds the best route to send signals to connect a call.

The longer the distance of the call, the more bounces the PSTN needs to make to ensure the call gets to its destination. This is routed through various exchanges. These ones aren’t private, but represent different localities in much the same way that a PBX represents a building or campus.

This is why 7 digit dialing works, it doesn’t need the area code as the local exchange doesn’t need to send the call outside its purview. Like a more expansive extension number.

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