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ARIMedia

Approaches to Transcription

I should just be able to tell it what I want it to do. As the cost comes down for live transcription and the quality ...
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ArchitecturePJSIP

WANTED: Dead or Alive!

The Story of Asterisk and Keep-Alives The vast majority of VoIP communications is done via UDP datagrams.  It’s a no-overhead protocol which makes it fast ...
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PJSIP

PJSIP: DNS Manager (dnsmgr) and Full Dynamic Hostname Support, Coming Soon!

Recently there’s been discussion on chan_sip going away in the future which led to many comparisons between it and chan_pjsip. What does chan_pjsip do better? ...
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Asterisk 14Asterisk 15

CDR/CEL Processing – Climbing the Beanstalk

One of the most annoying tasks within Asterisk (or VoIP in general) is the task of CDR and event processing. Why is processing these so ...
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Uncategorized

Asterisk 15 Webinar

Slight interlude from your regularly scheduled programming. For any interested, Matthew Fredrickson, manager of the Asterisk project, will be giving a webinar on Tuesday December ...
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DocumentationPJSIP

PJSIP mis-configuration can cause loss of SIP registrations

Setting the "max_contacts" configuration option too low can cause loss of registrations. How that can happen and some recommendations are described.
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PJSIPSecurity

pjproject-2.7.1 qualified for use with Asterisk

This week, we’re pleased to say that we’ve updated the Asterisk 13, 15 and master branches’ bundled version of pjproject to 2.7.1. This release contains ...
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ARI

ARICPP: an ARI library for modern C++

As is well known, there are several ways to extend Asterisk features, but if you want to exploit the full power of its raw primitive ...
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Documentation

Using MALLOC_DEBUG to find memory misuse.

Asterisk’s MALLOC_DEBUG is a compile time tool that helps find some common memory usage problems such as memory corruption and memory leaks. The debug tool ...
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ReleasesSecurity

RTP Security Vulnerabilities: A Retrospective

[dropshadowbox align=”none” effect=”lifted-both” width=”auto” height=”” background_color=”#ffffff” border_width=”1″ border_color=”#dddddd” ]tl;dr: We fixed the vulnerabilities. If you’d like to read the conclusion of this admittedly long saga, ...
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Asterisk 15WebRTC

Asterisk 15: Multi-stream Media and SFU

In a previous post some of the upcoming changes made for Asterisk 15 have been discussed. Specifically, one of the items mentioned is the beginnings ...
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Asterisk 15PJSIP

Upcoming WebRTC Improvements in Asterisk 15

In my previous post I talked about what WebRTC support is like in Asterisk 14. Since Asterisk 15 is going to be released soon let’s ...
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Asterisk 14WebRTC

WebRTC and Asterisk 14

WebRTC has been in Asterisk since Asterisk 11 and over time has evolved just as the WebRTC specification itself has evolved. The WebRTC implementation we ...
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PJSIP Configuration Design

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

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Continuous Integration Update

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

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