What is a PBX?

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What is a PBX?
A PBX or Private Branch Exchange, is the part of a private telephone system that manages phone calls both internally and externally for an organization.
The PBX was developed to provide large companies a cost reduction in their telecommunications bill by letting them handle their own telephone system routing while still providing a telephone line for calling outside the companies’ network to the Public Switched Telephone Network or PSTN.
A PBX can be located on premise, in the cloud, or through a hybrid of the two. Generally speaking cloud based systems are no longer referred to as a PBX but as a Unified Communication (UC) solution or UC as a service (UCaaS).
From the technology perspective, there are four different types of phones or end points on a PBX: Analog, Digital, Voice over IP, and Session Initiation Protocol (or SIP). A PBX takes one or more of these languages and translates it so that the PSTN can understand and connect calls. To get to the PSTN, a PBX must use either a telecommunications service provider (TSP) or an internet service provider (ISP) such as AT&T, CenturyLink, Sprint, etc.
The PBX reduces costs by sharing trunk lines between multiple stations. Instead of subscribing to 100 trunk lines for 100 stations, a PBX delivers multiple stations for only one trunk line.
Maintaining and updating an organizations' PBX is an important part of keeping an organization connected. The PBX serves as a critical component of an organization’s telephone network, so minimizing system downtime is utterly vital, which includes continually keeping the network's software up to date. Complex PBX systems often require professional telephony engineers to diagnose and fix problems, which is why many companies choose to form an ongoing maintenance relationship with a specialized PBX service provider.

[@JohnBrown-cr3nk]

Useful video! For those searching for a reliable cloud PBX, we've tried different solutions like 3CX and Nextiva, and decided to go with Thirdlane Multi Tenant PBX. Hope this helps. Thanks!

[@jasgarcha4783]

Easy to understand and, to the point. Thank you❤.

[@haile3619]

You don't know how much the great animation helps. LOL. Thank you!

[@hassansyed4854]

Very nicely done... I wasn't able to understand even after watching hour-long videos.

[@deepamgujrani]

I still cannot understand lol

[@doriscampbell9775]

Certified on the on all the top pbx switches in the states. ROLM Nortel was my two big ones.. Simmons AND Mitel as hotel/motel switches . john, retired at&t, bell south, Centel , centry united general and a few more that gone..

[@Ahmad-hq7oz]

Best Explantation in just 2 min.

[@andyblackpool]

Since when have power stations doubled up as telephone exchanges or is that the norm in the US?

[@doriscampbell9775]

no, 40 years as a pbx man. i've never seen it. john

[@brandonfarfan1978]

Aye. Nice lesson. I learned alot from this short vid. Thanks.👍😃

[@ycit135]

Thank You so much Sir . Now, I understand PBX system but I want to know PBX system require devices

[@mileena0027]

Great video and explanation!

[@jfarr206]

Great video and explanation! Thanks.

[@jzk2020]

Thanks

[@susanasher6939]

Great video!

[@cherrylnemenio2651]

Very helpful information

[@fatinlyana8547]

Does company need to pay Everytime they make a call internally (between workers in the company) ? And how about when they make a call to other company (externally) ?

[@mehrdadpc]

simple and useful... awesome

[@dusty3551]

Well explained

[@najisilmi6604]

Thanks for the explanation 😙👍

[@user-lo3ho3hq9e]

Great! many thanks!

[@slam68sa]

thanks a lot

[@username-ht9vx]

Hello team Tata

[@ashikdas3843]

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[@sohag-g5932]

Good video.

[@sugathankramankunji8080]

excellent sir

[@ranjeetjha3060]

Is PBX and SBC same ? In which applications we use a session border controller (SBC). Thanks for responding.

[@douglaslololo]

Thanks ;)

[@username-ht9vx]

This Nasif

[@testcardsandmore1231]

You really shouldn't connect your PBX to high voltage power lines. That could seriously damage your equipment and shorten your life...

[@dvscotlandphoenixnetwork]

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[@firasajeel968]

Great video and explanation! Thanks.

[@sorybakaba8324]

Thanks