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A complete change of opinion or belief. The phrase comes from the Italian term voltafaccia. Everyone was surprised when the candidate made a complete volte-face on her stance on taxes.

a volte-ˈface

(from French, formal) a complete change of opinion or plan: This represents a volte-face in government policy.This is a French adaptation of an Italian phrase and refers to turning to face the opposite direction.
References in periodicals archive ?
Thiswill enable our customers to benefit from richer, more reliable services, clearer voice calls, and value added benefits as they use our bundled VoLTE smartphones.
A VoLTE network, on the other hand, is a packet switched network.
As such, VoLTE requires strong and consistent LTE coverage.
The new VoLTE service is based on SRVCC (Single Radio Voice Call Continuity).
The rise in popularity of HD voice has accelerated the adoption of VoLTE globally, Al Abdooli said.
This report covers the present scenario and the growth prospects of the global VoLTE market for the period 2015-2019.
Also, DOCOMO and Verizon achieved the world's first transoceanic high-definition VoLTE roaming calls.
Infonetics research indicates that while the number of VoLTE networks in early 2014 was only eight, this number should have reached 38 with over 50 million subscribers by the end.
Before the arrival of VoLTE, Verizon customers accessed the web on 4G and received phone calls on 3G network.
By leveraging the Amdocs VoLTE Controller as a dedicated PCRF solution for VoLTE, service providers can deploy it alongside legacy PCRF systems, which can continue to support basic policy needs such as fair usage control.
More than 250 mobile operators around the world have deployed LTE networks commercially and many are actively in the process of rolling out commercial VoLTE services and trials.
We believe that as VoLTE and RCS services are launched and carriers start peering at the IP layer, the demand will increase and traffic will grow, said Pardeep Kohli, President and Chief Executive Officer, Mavenir Systems.
The company said that VoLTE will enable operators to offer innovative voice services over the LTE network
com)-- With three commercial network deployments, the (Voice over LTE) VoLTE market is well positioned for further growth with subscriptions expected to surpass 100,000 by the end of 2012.