IP telephony connection

Better telephony with the toplink IP telephone connection

IP-based, high-performance telephone connections from toplink transmit voice communication with VoIP at high speed – securely encrypted and with excellent voice quality.

With the toplink SIP trunk you use IP telephony according to international standards.
Manage multiple numbers with a single access account. You can choose from three SIP packages according to your needs:

toplink SPI Business


Info Grafik zeigt schematisch wie der IP-basierte Telefonanschluss funktioniert - IP Telefonanschluss

Your benefits

  • Certified by several manufacturers
  • Encrypted telephony
  • Flexibility and scalability
  • Protection against fee abuse
  • toplink SIP Business for Skype

    Info Grafik zeigt die Funktion des IP Telefonanschlusses für Skype for Business - IP Telefonanschluss

    Your benefits

  • No media gateway
  • Full use of Skype for Business
  • Certified by Microsoft
  • toplink SIP Business for Teams

    Info Grafik zeigt die Funktion des IP Telefonanschlusses für Skype for Business - IP Telefonanschluss

    Your benefits

  • No media gateway
  • Full use of Microsoft Teams with VoIP capability
  • Protection against fee abuse
  • Flexibility and scalability
  • toplink SIP Business International

    Info Grafik zeigt die Funktionalität des internationalen IP Telefonanschlusses von toplink - IP Telefonanschluss

    Your benefits

  • International phone numbers
  • Available in over 60 countries
  • Emergency call function is supported
  • International porting of phone numbers possible
  • Accessories

    Session Border Controller (SBC)

    Use a Session Border Controller (SBC) to clearly separate your corporate network from the IP-based telephony world. Protect your business from threatening VoIP attacks.

    Your benefits

    • As a SIP firewall, the SBC performs a deep packet inspection and ensures that only proper SIP messages reach your network.
    • Simplified interoperability between SIP service providers and the manufacturer-dependent implementation variants of the SIP protocols of various IP-based telephone systems
      (using the implemented tools, the different formats of SIP messages can be adapted)
    • Best quality of the connection, regardless of the chosen form of communication, because sufficient bandwidth is always provided
    • The Network Address Translation (NAT) function automatically embeds IP addresses within SIP messages
    • Transcoding:
      • Codecs, e. g. conversion of G. 711 to G. 729 speech streams
      • Adaptation of various communication elements without common base (standards) that interact with each other, e. g. translation of the H.323 signaling in SIP functions

    Media-Gateways

    For combining and connecting your ISDN telephone system with the required future IP technology.

    Would you like to contact toplink directly?

    You can reach us personally at:
    +49 6151 6275 0

    We will be happy to answer your e-mail inquiry under:
    info@toplink.de

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