What is a PBX Phone System?

An (IP) PBX Phone System stands for "Private Branch Exchange". It is a private telephone network that bridges your telephone lines (callers) with extensions and other contacts inside your company or organization.

It is a full communication system designed specifically for handling callers from your Analog, VoIP / SIP telephone lines, PRI lines or PSTN (Public Switched Telephone Service, also known as POTS - Plain Old Telephone Line Service)...

Welcome to A new age of Communication features...

Today's business PBX phone systems allow for a host of integrated features to expand your company telecommunication options.

Today's phone systems include integrated options for connectivity using both POTS (Plain Old Telephone Service) along side VoIP - Voice over IP (AKA: SIP - Session Initiated Protocol) telephone line services. Other common options include PRI (Primary Rate Interface) lines which are end to end digital ciruit lines.

There a usually two componants to a Telephone System Network:

► The main PBX Box.
► The telephones - or end-user client devices which may include a mixture of: Office desk phones, remote phones, mobile phone app integration and SIP/or softphone applications.

PBX Phone Systems today also expand and enhance the way we communicate with new integrated features like PC and Mobile Device connects, conference scheduling and collaboration options, and many many more options as programming and IP / Network / Internet technologies change.

Options and capabilities on newer phone systems are not just limited to connecting telephone lines - they help connect people in your company around the world faster, and in new techologically reliable ways!

All access to phone system features...

Today's systems come with a host of multiple options with advantages and disadvantages associated with each platform.

"On premises PBX" Phone System means your hardware (and software) is physically kept in your office and your telephone line service comes in via various methods. "Demarcation" is associated with your physical telephone wired service coming into the building at a junction point - and is hard wired into your phone system. Or, you can have your line service come in through VoIP or PRI services direct to your phone system.

"Hosted PBX" means - the main hardware box is located off premises at a provider's site, and you connect using authenticated SIP desk phones or software designed to communicate direct to that service providers networked solution.

On premises is still the preferred method by most small, medium (SMB) and large corporate businesses - keeping your company's telecommunications in house avoids downtime or other critical problems associated with hosted PBX Solutions, including: loss of power, internet downtime and other technical factors that can affect your day-to-day operations.

Using your own system in house also means you are NOT limited to growth and have FULL ACCESS to an abundance of your features not provided in hosted PBX solutions...

System Features may include:

Multi-Language functions

Multi-company functions

Call Center controls

IVR (Interactive Voice Recorded) Auto-Attendant - Multilevel

Conference Scheduling / Conference Bridge

Multi-Branch / Office Peering

Music On Hold

Live Call Recording Server

Call Monitor: Whisper / Listen / Barge

Allows Multiple Endpoint registration per user

Time of Day / Scheduling Modes

Hunt Groups

Customized Outbound Calling Rules

Ring Groups / Extension Groups

Call Transfer

Call Park / Unpark Orbit

Company Directory - Dial-by-name

Announcement Center

Faxing functions


Voicemail to email (with sound file)

Regular and Vacation Voicemail

Call forward / Call Busy Forwarding

FOLLOW-ME call routing features

DND-Do Not Disturb

Auto-record Live Calls

Personal Music-on-hold

Time of Day / Scheduling Modes

Concurrent end-point SIP Registrations per extension allowed

Ring simultaneous locations

Internal and External Extensions

Remote Worker Extensions

Restricted Use Extensions


Enable / Disable Extension

SIP Video - depending on phone model

Call Queue

Call Routing

Call Hold


Paging / Intercom functions

Plus many more - usually Hosted PBX solutions will LIMIT many functions and feature access and charge you accordingly for adding functions available to you.