Hazelcast In-Memory Computing for Telecommunications

By deploying a cluster of Hazelcast High-Density Memory Store nodes storing TBs of data in-memory, in parallel with a Hadoop cluster, telecommunications companies can achieve breakthrough in-memory speed for processing, analyzing and manipulating their data.

Hazelcast is also used for large scale messaging in telecommunications. Hazelcast has data structures such as Topics and Queues which deliver in-memory performance that scales out elastically on commodity hardware and virtual machines. Hazelcast is being used in telecommunications applications that range from mobile cell tower telemetry to network equipment monitoring and management to consumer mobile messaging.

Hazelcast has a great deal of flexibility and can deliver in-memory performance to web-based applications as well. The rapid adoption of Hazelcast in telecommunications is a testament to its ability to reliably and securely deliver the best in scale-out, price-performance.

Products in this Use Case:

Hazelcast IMDG

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Selected Customers


AT&T, Inc. provides telecommunication services and products, including wireless communications, local exchange services, long-distance services, data/broadband and Internet services, video services, telecommunications equipment, managed networking and wholesale services. It operates business through four reportable segments: Wireless, Wireline, Security, and Other.

The Wireless segment operates comprehensive range of high-quality nationwide wireless voice and data communications services in a variety of pricing plans, including postpaid and prepaid service plans. It also sells handsets, wirelessly enabled computers and personal computer wireless data cards manufactured by various suppliers for use with voice and data services.

The Wireline segment provides both retail and wholesale communication services domestically and internationally. Its wireline services into three product-based categories: voice, data and other.

The Security segment includes business continuity and disaster recovery services as well as premise and network based security products.

The Other segment includes equipment, outsourcing, government-related services, customer information services and satellite video services.

The company was founded in 1876 and is headquartered in Dallas, TX.

Level 3 Communications

Level 3 Communications, Inc. (NYSE: LVLT) is a Fortune 500 company that provides local, national and global communications services to enterprise, government and carrier customers. Level 3’s comprehensive portfolio of secure, managed solutions includes fiber and infrastructure solutions; IP-based voice and data communications; wide-area Ethernet services; video and content distribution; data center and cloud-based solutions. Level 3 serves customers in more than 500 markets in over 60 countries across a global services platform anchored by owned fiber networks on three continents and connected by extensive undersea facilities.


At Open-Xchange, leadership is more a mindset than a title. The nature of our organization is geared towards a flat hierarchy and an open way of working together. The leadership team supports this approach through a mix of business expertise, entrepreneurial experience and operational know-how.

Telecom Slovenia

Telekom Slovenije (pronounced [ˈteːlɛkɔm slɔˈveːnijɛ]; Legal name: Telekom Slovenije d.d.) is a telecommunications company based in Slovenia, with its headquarters in Ljubljana. The company provides a range of fixed line, mobile, and Internet communications services in Slovenia and mobile and Internet communications services in Macedonia and Kosovo.

The Telekom Slovenije Group is the leading and most advanced telecommunications business system in the highly competitive Slovenian market. Group companies operate in the fields of fixed and mobile telecommunications, system integration, telecommunication networks construction and maintenance, and the group is also increasing its prominence in the multimedia and digital advertising. The group provides a reliable high-quality network, and advanced, diverse and user-oriented services. In addition to the domestic market, the Telekom Slovenije Group is also present in Southeastern Europe: in Croatia, Bosnia and Herzegovina, Kosovo and Macedonia, and also has a financial investment in the amount of a 50% share in Gibtelecom, national operator of Gibraltar.


TEOCO (The Employee Owned Company) is a leading provider of assurance and analytics solutions to communications service providers worldwide. By taming the glut of telecom network, operational and business data, TEOCO leverages its expertise and ‘big data’ and ‘real-time’ capabilities to analyze and optimize network and business performance. We help over 100 of the largest service providers around the world to run their businesses more efficiently and effectively by delivering solutions service providers require to remain competitive and profitable in rapidly evolving industry.

TEOCO is devoted to constant innovation. We are setting new standards in technology solutions, with a strategic emphasis on growing an organization that puts people and planning before profits. The core ethical values that were adopted when TEOCO was founded remain our guiding principles today. We take great pride in our work and in providing meaningful business results for our customers.


Verizon is one of the largest communication technology companies in the world. Every day, we connect millions of people, companies and communities with our powerful technology. We’re using our award-winning network to make breakthroughs in interactive entertainment, digital media, the Internet of Things and broadband services for customers. Whatever the future looks like, whatever the digital world promises, we will deliver.