Version 1.1.4 of Mumble, the premier open-source VoIP group-chat system has been released.

Mumble now officially supports Windows, Linux and Macs (OSX i386 & PPC)

Mumble is similar to gaimg VoIP systems such as Teamspeak, Roger-Wilco and Ventrillo but incorporates the lastest high-quality Speex codec which allows for crystal-clear sound and automatic gain control.

In software terms, Mumble is the client component and Murmur is the server. Mumble allows for a graphics overlay when full-screen gaming to show who is talking. There is also provision for communication between Mumble and game engines to allow automatic changing of teams and in-game ‘spatial’ voice.

A new service has just launched called TwitterFone. It is apparently a voice-to-text service that enables users to send Twitter messages without an SMS phone.

TwitterFone is free service that lets you update your Twitter feed using your voice from any mobile or cell phone. You call it, speak your tweet, and hang up. A short while later, your tweet will be posted on Twitter. Magic!

Twitter is a social-networking/’lifestreaming’ system which is normally fed by SMS-length messages sent either by mobile phone or the web.

Robert Poe for VoIP-News has written a handy article on how to get started making calls using the JAJAH software and network on your mobile phone.

JAJAH’s mobile VoIP service offers a ringback-and-connect type service which is described in the article.

Picked up on Surya Andreas’ blog, we have an article detailing his trials and tribulations with testing out potential Voice over IP client candidates for his Symbian/UIQ based mobile phone.

Fring, Nimbuzz, Truphone and Gizmo are mentioned along with Skype and I-Skoot. He seems to hold Fring in the best regard at the moment for it’s general all-round abilities.

Tom Keating for tmcnet has an article about options for real-time call screening of voicemail messages. He and his associate lament the demise of Sunrocket and discuss possibilities for call screening such as the Callwave hosted answerphone solution.