AT&T, Orange, Telefonica, TeliaSonera, Verizon, Vodafone, Alcatel-Lucent, Ericsson, Nokia Siemens Networks, Nokia, Samsung Electronics Co. Ltd., and Sony Ericsson have defined a a technical profile to ensure the smooth introduction and delivery of voice and SMS services on Long Term Evolution (LTE) networks worldwide.
Known as the One Voice initiative the profile defines an optimal set of existing 3GPP-specified functionalities that all industry stakeholders, including network vendors, service providers and handset manufacturers, can use to offer compatible LTE voice solutions.
The technical profile document defines a minimum mandatory set of features a wireless device and network are required to implement to guarantee an interoperable, high quality telephony service over LTE radio access. 3GPP Release 8, which is the first release supporting LTE, is taken as a basis for the profile in that it said to be best suited to meeting consumers’ expectations for service quality, reliability and availability when moving from existing circuit switched telephony services to IP-based LTE services.