The ongoing GSMA’s Mobile World Congress held in Spain saw more than 40 organizations including mobile service providers, handset vendors and equipment vendors committing to adopt GSMA’s Voice over LTE (VoLTE) initiative which aims to lead the development of the specifications that will enable interconnection and international roaming between LTE networks.

The involved players plan to complete this initiative by Q1 of 2011.

“The GSMA recognises the importance of a single, industry-wide solution for voice over LTE and by adopting the work of the One Voice Initiative, we will advance the creation of a global, next-generation wireless ecosystem,” said Alex Sinclair, Chief Technology and Strategy Officer at the GSMA. “With the support of the world’s leading players in mobile, VoLTE will generate economies of scale similar to those provided through the ubiquitous availability of GSM-based networks and devices. As mobile operators begin to deploy LTE, it is essential their networks are aligned around one, common standard for voice and messaging services, for the benefit of the mobile industry and consumers alike.”

Service providers participating in the initiative include 3 Group, AT&T, Bell Canada, China Mobile, Deutsche Telekom/T-Mobile, KDDI, mobilkom austria, MTS, NTT DoCoMo, Orange, SKT, SoftBank, Telecom Italia, Telecom New Zealand, Telefónica, Telenor, TeliaSonera, Verizon Wireless and Vodafone.

Handset manufacturers and equipment vendors supporting VoLTE include Acme Packet, Alcatel-Lucent, Aylus, Camiant, Cisco, Colibra, Communigate, Comneon, Ericsson, Fujitsu, Genband, Huawei, LG, Motorola, Movial, Mu, NEC, Nokia, Nokia Siemens Networks, Qualcomm, RADVISION, Samsung, Sony Ericsson and Tekelec.