42one Solutions and products

    Service Delivery Plattform

    • Minute termination/origination
    • Multi-client capable
    • Configuration of products
    • Billing
    • Fraud detection

    Hosted Switch

    • Interconnect provisioning
    • Least Cost Routing
    • Customer management
    • Realtime billing
    • Shadow billing

    White Label Billing

    • Multi-client capability
    • Re-Reselling
    • Own Billing layout
    • pricelist per Reseller/Customer
    • Defining and management of products

    SIP Trunking

    • 2-100 Channel (standard)
    • Multi-client capability
    • White-Label incl. Billing
    • Fraud controll
    • Fax2Mail

    Hosted PBX (Centrex)

    • IP-Centrex PBX
    • White-Label incl. Billing
    • Web based interface
    • 200+ service features
    • Mobile clients

    National / international numbers

    • Complete functionality for local exchange carriers
    • national / international numbers
    • Value-add numbers
    • Management of Number portability
    • All required regulatory functionalities


    • Definition of flatrates
    • minute packages
    • Customer/reseller portal
    • “rated”-CDR’s
    • “1st level”-Hotline

    active SIP Accounts


    switched minutes / month


    parallel calls


    phone numbers

    About us:

    A new era begins – 42one GmbH becomes Sewan Deutschland GmbH

    In the summer of 2020, a new era began with the strategic takeover of 42one GmbH by the French Sewan Group. The last step has now been taken – the renaming of 42one GmbH to Sewan Deutschland GmbH.

    The Sewan Group

    The Sewan Group, one of the leading European cloud service providers, is paving the way for entry into the German market. The aim is to jointly market cloud-based white label services for demanding B2B environments. At the center of Sewan’s business model is Sophia – a high-performance cloud platform through which Sewan provides a broad portfolio of communication services for ICT retailers. The offer ranges from landline and mobile telephony through collaboration, Internet access and security to cloud services such as Microsoft 365.

    In the course of the collaboration with Sewan, 42one is expanding its own portfolio with a wide range of automated cloud solutions that are provided to white label partners and service providers. Our new company thus combines a high degree of technical competence, industry know-how and ICT service experience.

    In order to usher in the new era and present the expanded range of products and services, we are now trading as Sewan Deutschland GmbH and will take over the group-wide brand in the coming weeks.

    New website soon

    We will shortly inform you about our new website, be curious about it!


    We are looking forward to every contact.