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2. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the three major cellular carriers in the country, AT&T Mobility, T-Mobile US, and Verizon. [1] [2] In 2016, MVNOs across the nation such as Metro PCS, Boost Mobile, Cricket Wireless, and Tracfone brands served about 36 million subscribers.

3. Preferred Roaming List - Wikipedia

   en.wikipedia.org/wiki/Preferred_Roaming_List

   Preferred Roaming List. The Preferred Roaming List ( PRL) is a database residing in a wireless (primarily CDMA) device, such as a cellphone, that contains information used during the system selection and acquisition process. In the case of R-UIM -based CDMA devices, the PRL resides on the R-UIM. The PRL indicates which bands, sub bands, and ...

4. LTE (telecommunication) - Wikipedia

   en.wikipedia.org/wiki/LTE_(telecommunication)

   v. t. e. In telecommunications, long-term evolution ( LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM / EDGE and UMTS / HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements.

5. Travel without roaming costs with 50% off this eSIM card plan

   www.aol.com/travel-without-roaming-costs-50...

   But those data roaming charges are no joke. If you want to get your phone as ready as possible, get an eSIM with options for international data plans. aloSIM lets you buy data plans for over 120 ...

6. Roaming SIM - Wikipedia

   en.wikipedia.org/wiki/Roaming_SIM

   A roaming SIM is a mobile phone SIM card that operates on more than one network within its home country. Roaming SIMs currently have two main applications, the least cost call routing for roaming mobile calls and machine to machine. Using a normal network locked SIM, travelers can use their own roaming enabled mobile phone in any country that ...

7. Voice over LTE - Wikipedia

   en.wikipedia.org/wiki/Voice_over_LTE

   Voice over LTE ( VoLTE) is an LTE high-speed wireless communication standard for voice calls and SMS using mobile phones and data terminals. [1] [2] VoLTE has up to three times more voice and data capacity than older 3G UMTS and up to six times more than 2G GSM. It uses less bandwidth because VoLTE's packet headers are smaller than those of ...