Nokia Siemens Networks rings up another first in LTE with 3GPP standardized voice calls

Source: Nokia Siemens Networks press release
Successful IMS-compliant voice calls and SMS messaging using standardized LTE equipment marks an important step towards commercial voice over LTE deployments.

Nokia Siemens Networks has carried out the world’s first voice calls in LTE networks using commercial, 3GPP-standardized user and network equipment. The success of the voice calls and SMS texting demonstrate the viability of the One Voice approach to voice over LTE (VoLTE).