- 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
- Wewei
- NeeHau Client V2.0.0.23 (with OM20/20G/50/50G)
- OM20G V177 P2
- OM50G V177 P2
- OM80E V177 P3
- FAQ
- 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
PSTN always be known as a ‘telephone line’.This is the most commonly used method by all users that only have the need to use one line for one conversation at a time using only one phone number.As a dedicated service, a PSTN line cannot be used for any other purpose while a call is being made. A PSTN phone number is equivalent to one phone line.The following will show you what does PSTN mean .
PSTN Gateways Introduction
Public switched telephone network (PSTN) gateways are third-party hardware components that translate signaling and media between the Enterprise Voice infrastructure and the PSTN, either directly or through connection to SIP trunks.
In either topology, the gateway terminates the PSTN. The gateway is isolated in its own subnet and is connected to the enterprise network through the Mediation Server.
An enterprise with multiple sites would typically deploy one or more gateways at each site. Branch sites can connect to the PSTN either through a gateway, or through a Survivable Branch Appliance, which combines gateway and servers in a single box. If branch sites use a gateway, both a Registrar and Mediation Server are required on site, unless the WAN link is resilient. One or more Mediation Servers, which are collocated on Front End Servers, can route calls for the one or more gateways at each site. We recommend that the Registrar, Mediation Server, and gateway required on site are deployed as a Survivable Branch Appliance.
Determining the number, size, and location of PSTN gateways is perhaps the most important and expensive decision you must make when planning your Enterprise Voice infrastructure.
Here are the main questions to consider. Keep in mind that the answers to these questions are all interdependent
How many PSTN gateways are needed? The answer depends on the number of users, the anticipated number of simultaneous calls (traffic load), and the number of sites (each site needs one).
What size should the gateways be? The answer depends on the number of users at the site and on the traffic load.
Where should the gateways be located? The answer depends in part on the topology and in part on the geographic distribution of your organization.
You should also consider your gateway topology options (for details, see Gateway Topologies later in this topic).
How Do PSTN Phone Lines Work?
Think of a Public Switched Telephone Network (PSTN) as a combination of telephone networks used worldwide, including telephone lines, fiber optic cables, switching centers, cellular networks, as well as satellites and cable systems. These help telephones communicate with each other.
Put simply, when you dial a phone number your call moves through the network to reach its destination – and two phones get connected. To fully understand how a POTS actually works, consider what happens when you dial a number from your own phone.
Step #1 - Your telephone set converts sound waves into electrical signals. These signals are then transmitted to a terminal via a cable.
Step #2 - The terminal collects the electrical signals and transmits these to the central office (CO).
Step #3 - The central office routes the calls in the form of electrical signals through fiber optic cable. The fiber optic conduit then carries these signals in the form of light pulses to their final destination.
Step #4 - Your call is routed to a tandem office (a regional hub responsible for transmitting calls to distant central offices) or a central office (for local calls).
Step #5 - When your call reaches the right office, the signal is converted back to an electrical signal and is then routed to a terminal.
Step #6 - The terminal routes the call to the appropriate telephone number. Upon receiving the call, the telephone set converts the electrical signals back to sound waves.
This may sound complicated, but the thing to remember is that it takes a few seconds for your call to reach its destination. This process is facilitated by using fiber optic cables and a global network of switching centers.
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