Ericsson - The GSMA IR.92 voice-over-LTE and GSMA IR.94 IMS conversational video specifications are the preferred industry choices for mass-market voice and video calling services over LTE, satisfying user expectations and providing the most advantageous solutions for operators.

Ericsson - Unlike previous 3GPP wireless technologies, LTE has no circuit-switched bearer to support voice, so carrying voice over LTE requires a migration to a voice over IP (VoIP) solution – commonly under the umbrella of IMS. Until this migration occurs, LTE-capable handsets need to revert to 2G or 3G for voice calls: an approach that is not ideal in the long term.

HILLSBORO, OR, U.S. - February 23, 2012 - Radisys® Corporation (NASDAQ: RSYS), a leading provider of embedded wireless infrastructure solutions, today announced the successful deployments of an LTE services core network by Mavenir Systems using Radisys' AdvancedTCA (ATCA) platforms, Trillium® software and IP Media Server.

Shelton, CT – February 13, 2012 – TranSwitch Corporation (NASDAQ: TXCC), a leading provider of semiconductor solutions in the rapidly growing consumer electronics and telecommunications markets, today announced that its Atlanta 2000™ LTE Gateway reference design has successfully completed testing over the Verizon Wireless 4G LTE * (Long Term Evolution) development n

Calabasas, CA, February 09, 2012 – Ixia (NASDAQ: XXIA), the leading global provider of converged IP and wireless network test solutions, today announced that it will demonstrate a new industry-leading VoLTE test solution at Mobile World Congress 2012 from February 27 – March 1, in Barcelona. The live demonstration will take place in Ixia’s booth 1E47, Hall 1.

Heavy Reading - With the implementation of voice over LTE (VoLTE) and rich media communication services tipped to be a matter of when and not if for most large tier 1 operators, an Ericsson co-spon

4G Networks are happening right now, delivering ever increasing bandwidth and speed to a myriad of devices all over the world. However, when it comes to voice, it is still done the "old fashion way".

SAN MATEO, Calif.

The MSF White Paper discusses the results of the VoLTE IOT event and identifies specific interoperability issues.

Fremont, CA, November 9, 2011 – The MSF (MultiService Forum) announced today the release of the White Paper for the first ever MSF VoLTE (Voice over Long Term Evolution

Freehold Township, NJ – October 26, 2011 – Traffix Systems, the Diameter control plane experts, contributed Diameter routing support with its DRA in the VoLTE (Voice ov