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H1 Telekom

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Who is H1 Telekom?

H1 Telekom is a Croatian telecommunications and IT services provider focused on fixed connectivity, cloud-based communications, and managed infrastructure for business customers.

  • Business fixed and mobile telephony, Session Initiation Protocol (SIP) trunking, and IP-based voice services (communication services).
  • Enterprise internet access, data connectivity, and Virtual Private Network (VPN) services over fixed network infrastructure (network services).
  • Cloud PBX and unified communications solutions for distributed and hybrid workplaces (UCaaS).
  • Managed hosting, virtual servers, and data center colocation for business workloads (infrastructure services).
  • Consulting, deployment, and support for telecommunications and IT environments for SMEs and larger organizations (professional services).
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More About H1 Telekom

H1 Telekom operates as a telecommunications service provider in Croatia with a portfolio oriented toward enterprise, public sector, and Small Medium Enterprises (SME) connectivity and communications requirements. Its services cover fixed and IP-based voice, data access, and hosted infrastructure, allowing organizations to consolidate telephony, internet, and selected IT workloads under a single provider. The company focuses on business-grade service levels, including dedicated access, service monitoring, and support models suited to multi-site and distributed environments.

In enterprise contexts, H1 Telekom’s fixed and IP telephony offerings (communication services) typically use SIP (Session Initiation Protocol), Voice Over Internet Protocol (VoIP) (Voice over IP), and related signaling and media protocols for call setup, routing, and termination. These services can integrate with on-premises (on-prem) IP PBX equipment or cloud PBX platforms and are often combined with SIP trunking for outbound and inbound call capacity. This supports number portability, direct inward dialing (DID), and integration with customer contact centers or unified communications clients.

The organization’s connectivity portfolio (network services) provides business internet access, point-to-point and point-to-multipoint data circuits, and VPN options. These services are aligned with standard enterprise networking architectures, including Multiprotocol Label Switching (MPLS) or IP-based VPNs, and are used to interconnect branch offices, headquarters, and data centers. H1 Telekom can serve as the primary network operator or as a connectivity provider in multi-operator network topologies, depending on customer design.

Cloud PBX and unified communications offerings (UCaaS) from H1 Telekom are designed to centralize call control, voicemail, call routing, and collaboration functions in a cloud environment. These services target organizations that prefer not to maintain on-prem PBX hardware and instead connect endpoints such as desk phones, softphones, and mobile clients over IP networks. Standard features in this category include call queues, hunt groups, auto attendants, and integration with corporate directories.

On the infrastructure side, H1 Telekom provides managed hosting, virtual servers, and colocation services (infrastructure services) from data center facilities. These offerings support workloads such as business applications, web services, and backup repositories. Customers can deploy virtual machines, allocate storage, and configure network access according to their own security and performance requirements while relying on H1 Telekom for underlying hardware, power, and environmental management.

In addition to connectivity and hosting, H1 Telekom offers consulting, deployment, and ongoing operational support (professional services). This includes network and telephony solution design, migration planning from legacy voice or data services, and lifecycle management for deployed solutions. The company fits into enterprise IT directories under categories such as telecommunications carriers, business internet and data connectivity providers, cloud PBX and unified communications vendors, and managed hosting and colocation providers.

Our description of H1 Telekom. Updated December 2025.

Market segments

  • Telecommunication Services / Diversified Telecommunication Services / Integrated Telecommunication Services

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Headquarters
Croatia

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