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PJSIP Configuration Design

By Joshua C. Colp

A comment that I see frequently when helping people with PJSIP is the lack of a general section (with global options) and how this causes their configuration to be larger [...]

pjproject-2.9 Qualified For Use With Asterisk

By George Joseph

We’re pleased to say that we’ve qualified pjproject 2.9 with Asterisk and that the recent 13.28 and 16.5 Asterisk releases have the bundled pjproject updated to the new version.  All [...]

Support for large certificate sizes in DTLS now available!

By Joshua C. Colp

When DTLS support in Asterisk was added the information about how to use DTLS support in OpenSSL was not as flushed out as it is today. To that end the [...]

Stasis State: Improved Management

By Kevin Harwell

Stasis has been a core part of Asterisk for a while now. However, state management within it is a bit precarious. A new stasis_state module has been created to help [...]

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 [...]

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