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Max Telecom (Bulgaria) uses 2 GSM bands, 1 UMTS band, and 1 LTE band. Find out if your unlocked phone or mobile device will work with Max Telecom (Bulgaria). See the tables below for details.

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Carrier website: https://www.maxtelecom.bg

Max Telecom Bulgaria was a mobile telecommunications company and internet service provider (ISP) that operated in Bulgaria. Here are some key points about its mobile network:

  • Founding and Launch: Max Telecom was founded in 2007 by Krasimir Stoychev, the founder of Bulgaria's first GSM operator MobilTel. The company launched its commercial LTE network in Bulgaria in 2014, making it the first to do so in the country.

  • Network Coverage: Initially, the LTE network covered six cities: Sofia, Stara Zagora, Sliven, Bansko, Ruse, and Pleven. Later, the network expanded to include more cities and seaside resorts along the Bulgarian Black Sea Coast, such as Varna, Burgas, and Sunny Beach.

  • Services: Max Telecom provided a range of services including Internet access, virtual private networks (VPN), voice services, video services, and IPTV. It also launched VoLTE (Voice over LTE) services using open-source SIP-Server Kamailio.

  • Insolvency: Despite its innovative services, Max Telecom faced financial difficulties. The Sofia city court declared the company insolvent in December 2018 due to a significant debt to M Sat Cable and Nokia Solutions and Networks.

  • Rebranding: In May 2014, Max Telecom rebranded itself as "Max" and introduced a new logo. This change was part of its efforts to promote its LTE services and expand its market presence.

Max Telecom's mobile network was notable for its early adoption of LTE technology in Bulgaria, but the company ultimately ceased operations due to financial issues.


Frequency Bands

GSM

Name Interface Description
900 MHz (E-GSM) GSM

Max Telecom Bulgaria uses the GSM 900 MHz (E-GSM) frequency band.

1800 MHz (DCS) GSM

Max Telecom Bulgaria uses the GSM 1800 MHz (DCS) frequency band, which operates within the 1.8 GHz range. The specific frequency ranges for this band are:

  • Uplink: 1710–1785 MHz
  • Downlink: 1805–1880 MHz

This band offers reduced signal interference and greater channel availability compared to the more crowded 900 MHz and 1800 MHz bands used by GSM. It provides services such as voice communication, text messaging (SMS), and basic data communications, similar to GSM. The modulation schemes used include Time Division Multiple Access (TDMA) and Frequency Hopping Spread Spectrum (FHSS).


UMTS

Name Interface Description
B1 (2100 MHz) UMTS

Max Telecom Bulgaria uses the UMTS B1 (2100 MHz) frequency band for its UMTS services. This band is widely used for 3G services and is supported by various networks and devices globally. It is particularly notable for its extensive use in many countries, including Bulgaria.


LTE

Name Interface Description
B3 (1800 MHz +) LTE

Max Telecom Bulgaria uses LTE Band 3 (1800 MHz +). This band is one of the most widely used frequency bands for LTE deployments globally, particularly popular in Europe. It supports both FDD and TDD configurations, offering a balance between network coverage and data capacity, making it suitable for dense urban areas.


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