What's a PBX and why does your company need one?

What is a PBX System?

A PBX system is a private telephone network used within a company. The key word here is “private” – it’s like having your own mini telephone company. This system connects the internal telephones within a business and also connects them to the public switched telephone network (PSTN), which is the regular network everyone uses for phone calls.

Advantages of PBX over Cell Phones

  1. Centralized Control: With a PBX, you have a central hub for all communications. Imagine a receptionist who can transfer calls to any department or person within the company. This is more efficient than having to call multiple cell phone numbers.
  2. Extension Numbers: Employees have extension numbers, not just separate phone numbers. This makes internal communication smoother and more professional.
  3. Cost-Effective for Internal Calls: Calling between extensions is usually free, which can reduce costs significantly, especially for larger companies.
  4. Advanced Features: PBX systems often have features like call holding, transfers, voicemail, conference calling, and sometimes even call recording. These features are crucial for business operations and are more seamlessly integrated than in standard cell phones.
  5. Professional Image: Having a PBX system presents a professional image. When a client calls, they’re greeted by a business system, possibly with a menu (“Press 1 for Sales, 2 for Support…”), which is more professional than just a standard cell phone greeting.
  6. Scalability: As a company grows, it’s easier to add more phones and extensions to a PBX than to constantly add and manage new cell phones.
  7. Reliability and Quality: PBX systems are generally more reliable for consistent voice quality, especially in areas with poor cell reception.
  8. Integration with Business Systems: Many PBX systems can integrate with computer systems, allowing for features like voicemail to email, call analytics, and more.
  9. Remote Work: Most modern PBX systems now allow handsets to be connected without being on the same network as your PBX. This allows employees to take desk phones to remote locations and work as though they are in the office.
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Willie, great thread topic. It’s my understanding the Grandstream PBX supports DID without the need for additional SIP lines for each extension. Is this accomplished via selecting an extension number from an audio menu prompt?

Jim

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Great question! That is actually determined by you and your sip provider. Most of the time if you have a SIP trunk with a single (only one inbound OR outbound) call path then usually (but not always) we see a single DID with that trunk. On flexible trunks you can have multiple call paths and as many (one or many) DIDs as your provider allows. Inbound routes control what we do with a DID once it hits our system.

We used UCM’s for years but always battled with the poor quality mobile app WAVE, voice quality and Grandstream’s push to cloud gdms etc. We decided to stick with grandstream handsets but moved the PABX to 3CX in conjunction with running SBC on a VM via Synology and we have not looked back. 3CX’s mobile app is second to none and now most of my customers use the app, the business upside to the app is that when employee’s use the app they ring out on the business line and not their personal mobile number, great if the employee leaves as they won’t continue getting calls about a business they don’t work for any more. we also integrate 3cx to 365, easily put our company logo on the handset screens, voice quality is great. We now run about 100 3cx instances with no issues.

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Wait until you see what Grandstream has in store for this year.

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We seriously considered Grandstream as an option for our company but the lack of SMS support was a showstopper for us we needed regular SMS as well as 10dlc campaigns etc.

I’ve used Asterisk/FreePBX with Cisco/Grandstream/Gigaset phones for over 20 years. Rock solid, works great inter office using VPN on a separate VLAN.

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I normally get FortiVoice added into my deployments because the cost is low when I order the rest of the network from them anyway.

Lack of SMS is very odd. Paying for remote users to use the limited app is also odd. I dislike the 3cx company, but UCM is way out still.

Remote users do not have to pay to use the app if they use a VPN or are on the same network.

The only time a plan for remote users is needed is if the users are using Grandstream’s relay service.

I find the app very useful and feature rich. If it does not meet your needs the good thing is that Grandstream allows any SIP compliant app to register and work.

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