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The case of the blocked AMI Stasis subscription

By Joshua C. Colp

Manager is an API that has been in Asterisk for almost as long as Asterisk has existed. It provides a mechanism to see what is happening in Asterisk and to [...]

transport-cc: Improving feedback for better video quality

By Joshua C. Colp

I’ve previously written about REMB, or receiver estimated maximum bitrate, and its effect on video quality. While this provides periodic feedback from receivers to Asterisk and a mechanism to set [...]

Continuous Integration Update

By George Joseph

Back in December in my The Continuing Saga of Continuous Integration blog post I wrote about how we reduced the Testsuite’s “27” layers of file system access down to 3 [...]

Changing CHANGES (and UPGRADE.txt)

By Ben Ford

Overview For those of you who have been around for a while now and contribute to the code base, you probably know about CHANGES and UPGRADE.txt and how annoying it [...]

res_mwi_devstate: Presence subscription for voicemail mailboxes!

By Joshua C. Colp

In Asterisk we have an API called device state. As the name implies this allows a device (such as a PJSIP endpoint) to provide notification to the system of its [...]

Developer Notes: Large Number Storage

By Kevin Harwell

I ran into a curious problem the other day while working on an issue involving the storage, manipulation, and conversion of large number values in Asterisk. Background Many moons ago [...]

Stasis Improvements: Goodbye Dialplan!

By Ben Ford

Overview One of the topics of discussion every year at Astricon is not needing to use the dialplan in order to use Stasis. This involves a couple of different things [...]

Did you know you can use “@” variables in pjsip.conf?

By George Joseph

You probably already know that you can use the “set_var” parameter on pjsip endpoints to add variables to a channel using that endpoint but did you know you can set [...]

Asterisk Usage Survey

By Matt Fredrickson

For those of you that do not know me, my name is Matthew Fredrickson and I’m the project lead for the Asterisk project. First off, I wanted to thank all [...]

Filtering Event Types in ARI

By Kevin Harwell

Since the arrival of the Asterisk REST Interface (ARI) requests have been made to allow for event type filtering capabilities. Consumers have wanted a way to make it so Asterisk [...]

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