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Top 5 reasons for an in-house Asterisk PBX.

Telecom saleperson and sales group.Choosing whether to buy an in-premise phone system or sign up for cloud based business phone service is often a hard choice.  Much depends on the size of your organization and how many extensions you will require.  If you have 10 or less employees or multiple small offices, then hosted business VoIP from a provider might be a great choice, however, if your company is larger or has existing traditional phone lines, than other variables need to be considered. 

There are advantages to having your own phone system.

One important item that precedes all others is your current carrier and if you have a contract and if you want to switch or just add other cost saving options.  An Asterisk system can connect to any type of a provider's service whether it's traditional copper phone lines, a PRI circuit or SIP/VoIP.

A premise based Asterisk phone system:

  1. You have control over your network- An Asterisk premise phone system resides on your network.  This eliminates any long distance signaling that occurs with off-premise or cloud based based VoIP systems.  Communication from the phone to the PBX server is almost instantaneous, so signaling distance and latency should be non-existent as it does not travel over the Internet and other networks.
  2. Non-proprietary Open Source System- Asterisk phone systems can use non-proprietary phones and other hardware.  This will lower costs and allow for open market choices for vendor neutral hardware.  Need a phone, buy it from many online sources.
  3. Lower ongoing operational costs- Having your own in-house PBX saves money over time when compared to a hosted model, which probably has lower upfront costs.  A business owned phone system will typically result in lower monthly operating costs when spread out over time.  This is especially true for larger company systems with a higher number of users.  The larger the system the more the savings when compared to a cloud based service.
  4. Extra cost savings when SIP trunking- Using SIP trunks for low cost calls, both domestic and International, will save money over traditional carriers.  When you have your own phone system you can choose which carriers to buy service from.  This gives you pricing flexibility.
  5. Expandability- Lower cost to add users and extra extensions.  Since Asterisk systems are non-proprietary adding more capacity only requires the hardware, not extra licensing fees.  Users at home can set up remote extensions easily without additional software licensing.
Asterisk systems are lower in cost, easy to setup and maintain.

Just in the last three or so years, several manufacturers of Asterisk ip-pbx appliances have built systems that when matched with their own SIP based phones have become some of the best in-house unified communications phone systems available for the SMB market. Several of these companies have been well known for other products, like Grandstream, which has been making IP phones for quite some time and Sangoma, known for great gateway cards used in Asterisk installations. Companies are now recognizing that traditional manufacturers of PBXs are in most cases not worth the large cost compared with Asterisk systems.

Asterisk has proven to be extremely stable and with so many installations more and more people are hearing first hand that these systems are hard to beat. See some great examples:

          Top 3 Asterisk PBX Systems for SMBs        Costs for 3 Different Asterisk Systems

some of the benefits of a hosted voip system.

If you are looking at a cloud based business phone (also known as hosted VoIP), you may be interested to learn its benefits.     Benefits of a Cloud Based Phone System

Asterisk- Premise Based

  • Non-Proprietary: Brings down initial costs,  expansion costs and operating costs over time.
  • Management: Most small Asterisk based systems are easily configured and installation is made to be easy  by in-house personnel. The GUI offered by some manufacturers are well designed and intuitive. This opens the door for an in-house person to maintain your network, including your phone system.
  • Choice of connections: You can connect through any type of voice/phone connection.

Asterisk based IP-PBXs are better and more affordable than ever.

2017 has shown a shift with more SMBs choosing an in-house solution over a total cloud based phone service. The reasons are both cost savings and ease of installation and management, with several well known companies making excellent solutions. 2018 will likely accelerate this trend. Read more:

Advantages of an in-house Asterisk based IP-PBX



One of the best small Asterisk based phone systems that's affordable and has more features than most other systems:

Grandstream UCM Asterisk Appliance