sip

Google Summer of Code opportunities in JavaScript, HTML5, jQuery and WebRTC

WebRTC is one of the highlights of HTML5. The latest stable releases of Google Chrome (including the free Chromium browser) and Firefox include support for this technology and although the specifications are still being finalized, this is the time when developers can start preparing the first generation of web-apps that will define the future of this technology.

Free communications software takes another big jump

One of the most exciting demonstrations at FOSDEM this year was the new JitMeet web application from the Jitsi team.

JitMeet takes the power of the traditional Jitsi Videobridge and makes it accessible to anyone, anywhere (with a modern web browser) using WebRTC.

Debian SIP without reading the manual

Most people don't have time to read manuals. The Debian SIP service has a reasonably thorough user guide with screenshots but some people may just want to have this level of detail if they really have to troubleshoot a problem.

WebRTC is the fastest way to start

Just set up your db.debian.org RTC password and use it to log in to the https://rtc.debian.org site.

If you thought systemd proponents were bad....

Just imagine for a moment if something like the iPhone App Store approval process was applied to every application for a domain name. Delays and unexplained rejections killing many great ideas before they even get off the ground. In the worse cases, like that of Greg Hughes, the great firewall of the app store has been used to quash ideas that it appears Apple may have been planning to compete with or copy.

Lumicall: giving you choice when you dial

One of the distinguishing features of Lumicall, the free and open SIP/VoIP app for Android, is the unique dialing experience.

In fact, even regular softphones for the desktop/laptop don't currently offer the same power when you want to make a call.

In my previous blog, I looked at the ENUM technology that underpins part of this compelling new user experience. Here we can step back and look at the bigger picture.

A quick look at ENUM mapping telephone numbers to DNS

With my talk about Lumicall at FOSDEM coming this Sunday, I'm going to have a quick look at some of the technologies used in Lumicall over this week. The first is ENUM

Introduction to ENUM

ENUM, as defined by the IETF, is a convenient and powerful way to map telephone numbers to the latest communications technologies such as SIP, XMPP (Jabber) and web sites.

ENUM resolution operates much like reverse DNS lookup:

WebRTC calling from Firefox on CyanogenMod to Chromium on Debian wheezy

Just how easy is it to make a call with WebRTC?

Here I have two endpoints:

DruCall updated, Lumicall talk at FOSDEM next weekend

The latest version of DruCall is now pushed to the Drupal Git Repository. As described previously, this version uses JSCommunicator (which is based on the popular JsSIP) as the underlying phone framework. I would be very grateful if somebody from the Drupal community could kindly help my projects escape from the sandbox.

Test numbers for SIP and WebRTC

Want to test or troubleshoot WebRTC calling or SIP calling without bothering anybody?

Now there are some test numbers you can call by just clicking in your desktop or mobile web browser.

Launching FreePhoneBox.net

The https://freephonebox.net service has now gone live. This is a great way for people without a SIP account to call those who do have one (like all the Debian Developers who got SIP on Saturday) using nothing more than a web browser (no plugin required).

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