T-Mobile is the first operator in the Czech Republic to commercially launch VoLTE

Faster connection times
Higher voice transmission quality
Possibility to use data services while calling

Prague, 4 May – T-Mobile today commercially launched Voice over LTE (VoLTE) allowing standard IP calls in the LTE network. It has also terminated the technical pilot operation of this technology that had been running since October last year. T-Mobile is one of the first operators in the world to start offering VoLTE to customers. The first handset supporting this technology is the Samsung Galaxy S5. The operator has been working intensively with various manufacturers to make the technology work with other types of devices.

“Since the time of Alexander Graham Bell, the technology of connected circuits has been used to connect calls between two parties. VoLTE brings a breakthrough solution for transmitting standard calls in mobile networks, which takes the form of data packets,” says Vladimír Klein, Technology Director at T-Mobile, adding: “I am very happy that T-Mobile has confirmed its role of innovator and is the first operator in the Czech Republic to offer this revolutionary technology to its customers.”

The biggest advantages of VoLTE include very short call-connection times, improved quality of calls (even in comparison with HD Voice technology in the 3G network) and lower power consumption for calls, which translates into longer battery life. Additionally, data connections are not restricted during calls, which comes in handy, for example, when customers use online navigation and make a call while driving. If users leave an area covered with LTE, calls are handed over to the 2G or 3G network without any interruption (SRVCC function).

Beginning tomorrow, customers using VoLTE-enabled devices will start receiving messages inviting them to update the firmware, which can be done in the usual manner. In subsequent days, T-Mobile will automatically make VoLTE available to customers on their existing telephone numbers. Calls in the LTE network do not use up the data allowance and no extra fee is charged for them.

In the first stage, the technology will be available to customers who do not use the services of the Virtual Private Network or prepaid Twist services. In subsequent stages, T-Mobile will make VoLTE accessible to all customers.

T-Mobile Czech Republic, a member of the international telecommunications group Deutsche Telekom, has almost 6.2 million customers, the number-one operator in the Czech market. T-Mobile is an integrated operator: in addition to telecommunications services, it offers comprehensive ICT solutions not only for companies, but also for other organizations and individuals. It provides outstanding services in the high-speed network, which was proved repeatedly by benchmark testing performed by umlaut (former P3) with Best-in-Test seal.

T-Mobile Czech Republic places emphasis on taking a responsible approach to the environment and society. It adheres to fair business practices, helps beneficial applications and services to see the light of day, supports non-profit organizations, small businesses and individuals, and lends a helping hand whenever crisis situations arise. The company’s employees serve as volunteers in many places across the entire Czech Republic.

More information about the company is available at www.t-mobile.cz, www.t-press.cz (the portal for journalists) and www.t-mobile.cz/pomahame (information on the company’s CSR activities).

Contact details of the press unit: press@t-press.cz.