Professional applications

IP TC System Connection

SIP is the future

All-IP is now available for telephony. ISDN is deactivated step by step. Together with our German cloud telephony partners, we offer you modern NGN connections for your PBX system(s). This enables you to connect your existing telephone system directly or via a media gateway to the public national or international telephone network. A PBX connection can flexibly map from 1 to 300 voice channels. The required capacity can be quickly and easily adjusted and programmed.


With the SIP-TK system you can use our very competitive business telephone tariffs. With the business tariff, all individual connections are billed per second from the first second.
  • 1 cent/min for calls to the national fixed network
  • 4 cents/min. for calls to international mobile networks
  • from 1 cent/min. to the international fixed network
  • Business flat option: national fixed network, national mobile network, international fixed network

Sip Trunk diagram

Provider SIP trunk system connection solutions



  • Provision, installation and operation of SIP-TK system
  • Deployment online system manager
  • Regular system maintenance and connection monitoring
  • 24h support hotline
  • Electronic billing



  • Very competitive business tariffs incl. business flat options
  • Savings potential of up to 50% compared to ISDN
  • Simple replacement of ISDN or analogue telecommunication connections
  • Certified solution for all common telecommunication systems
  • Highest availability, secure connection
  • Broadband, flexibly scalable voice channels
  • Also usable as parallel or back-up solution