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Asterisk Tutorial 06 - Asterisk Dial Plans

Asterisk Tutorial 06 - Asterisk Dial Plans

Introducing Asterisk Phone Systems: Asterisk Dial Plans

In this the 6th Instalment of our Introducing Asterisk series, we take a look at Asterisk Dial Plans, what they are and what they do as well as explaining the concept of “Contexts” within Asterisk and how to define and configure them using the Asterisk Command Line Interface (CLI). We also introduce the concept of Asterisk Applications, taking a look at the app NoOp that creates Asterisk CLI output data when you try making calls.

As Mathias suggested, we would always recommend copying any file you are about to edit, just in case you need the original configurations at a later date. To do this, simply use the command:

cp extensions.conf extensions.orig

(i.e. copy (cp) + original file name + new file name).

Another quick tip from today’s episode is how to reload the Dial plan, without having to restart your entire Asterisk service. This also has the added benefit, that during the reload process, any errors found in the dial plan will be displayed now. Also, please note that in order to see the output generated by the NoOp application, you will need to adjust your verbosity levels using:


Stay tuned for next time when we will take a more detailed look at Asterisk Dial Plans and actually succeed in making some calls. If you like this series, why not subscribe to our blog using the subscribe box on the right of this page and stay up to date with not only our Introducing Asterisk Series, but also all the latest from the VoIP Guys and pascom.

pascom hosted PBX - start upgrading your business communications today

Final Word

A well-configured business phone system that oozes useful tools, delivers excellent audio quality and intuitive call flows will leave callers with a highly professional impression. The configuration options and application availability and how well they are utilized will have a decisive impact on how professionally you manage your calls and therefore how your customers view your company. The switch to a pascom VoIP phone system solution provides the opportunity to not only upgrade your internal collaboration but also to redefine your business telephony.

If you would like more information regarding pascom and our Asterisk based Software PBX, please visit our website or give the pascom team a call on +49 991 29691 0 to discuss your requirements and get started within minutes using our free hosted business VoIP phone system edition.

Thousands of companies trust pascom to stay connected


Philipp Meixner, CEO
As a communications agency with just under 20 employees, the pascom phone system is perfect for us. The technical concept simply functions, which is what you want. The service is exceptional and always accessible (even if it is rarely needed) and as one of the agency’s business partners, we can only recommend pascom: open, straight forward, pleasant to work with - great. Thank you pascom!


Stephan Förderung, CEO
We chose pascom because their phone systems offer a sleek, easy to use UC client and administration UI whilst providing us with all the PBX and UC features, control and visibility that we could possibly need from our business communications solution. As a result of our excellent experience, we are happy to recommend pascom phone systems to all our customers.


Lars Hoeger, IT Director
When we make decisions regarding new systems, we want to make sure that we have both reins firmly in our hands. Therefore, it is essential to implement systems which adhere to OpenStandards, allowing us to seamlessly connect and integrate these to our existing systems. In addition, we require reliable suppliers, who are ready to customise their solutions to our requirements, which is why we chose pascom who offer exactly this service and more.


Kassandra Martin, Deputy Director & Reception Manager
We chose pascom as our telephony solution in part due to the scalability, flexibility and ease of deployment. In addition, the pascom platform functions perfectly with our digital guest directories in our rooms whilst offering the largest range of features at easily the most cost effective price compared to alternative solutions. A further deciding factor was the wide choice of compatible hardware that choosing pascom afforded us.

Wake & Camp Ruhlsdorf

Markus Gerlitzki, Managing Director
My team and I pride ourselves on the level of excellent care we provide our guests. However, it can be distracting when the phone is always ringing and we constantly answer the same questions. Thanks to the pascom phone system, we have been able to setup an automated self-service hotline which allows guests to quickly get answers and if required callers can be quickly and efficiently routed to an an employee. The system greatly improves customer service with around the clock answers around opening times and courses and therefore reduces the strain on employees, ensuring we are free to cater to the needs of our on-site guests.

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