LISBON, Portugal-- Three UK said its new voice over LTE (VoLTE) service has run into several issues including accidental roaming by customers onto other operators' networks, causing a loss of revenue for the company.
While some U.S. carriers are moving ambitiously to deploy VoLTE-- T-Mobile is the obvious example here-- U.S. Cellular is taking a more measured approach and plans to begin to bring the technology to market next year.
Shares of U.S. Cellular plummeted after the carrier fell well short of expectations in its quarterly earnings. The nation's fifth-largest mobile operator posted first-quarter revenue of $958 million, below the $972.2 million expected by three analysts surveyed by Zacks Investment Research, according to the AP.
Worldwide IT spending is forecast to total $3.49 trillion in 2016, a decline of 0.5 per cent over 2015 spending of $3.5 trillion, according to Gartner.
VoLTE accounts for "well over half" of all calls on T-Mobile's network, the carrier said today, supporting more than 300 million calls a day from 27 million users on 40 models of supporting handsets.
T-Mobile appears to quietly be testing Enhanced Voice Services (EVS), a next-generation technology at the heart of Full HD Voice, in a move that likely is geared toward improving the quality of the carrier's VoLTE calls.
Ericsson announced that upgrades to Vodafone Netherlands' (NL) core network have enabled the operator to launch the first cloud-based, fully virtualised, voice over LTE (VoLTE) and Wi-Fi calling service in the country.
We reported this week that Vodafone Italy and TIM have initiated IP interconnection interoperability tests on their respective networks, with a view to enabling customers of both operators to call each other using voice over LTE (VoLTE) technology and swap messages and bits of contents using RCS-based apps.
TIM and Vodafone Italy said they are carrying out interoperability tests on their respective networks in an effort to enable customers of both operators to make voice calls over LTE (VoLTE) and exchange messages based on the RCS (Rich Communication Suite services) standard.
U.S. Cellular said it has largely finished its LTE network buildout, and noted it now covers roughly 99 percent of its postpaid customers with LTE service. The company also said it is now rolling out LTE roaming agreements with "multiple" unnamed partners.