Make phone calls over the Internet

German DID numbers

Voice over IP (VoIP)

With blueSIP your able to use the Internet not only for eMail and to surf the web but also to make phone calls. blueSIP can help you to reduce costs and offers new flexibility eg. for the integration of homeoffices.

Your current PSTN port will be enhanced or fully replaced by our solution.

  • in- and outbound calls via Internet
  • gateway to worldwide PSTN and mobile phone networks
  • low connection fees
  • German DIDs

SIP Trunking

Many PBX systems are already VoIP-capable and can be connected to blueSIP via SIP trunking. This way you not only reduce your callcosts but also extend your current PSTN trunk by adding additional voice channels by using your Internet connection. Another option is to fully replace your current PSTN trunk with blueSIP.


  • least cost routing via blueSIP
  • callerid presentation of extensions
  • additional voice channels
  • extend or replace your PSTN trunk
  • no monthly fee, one-time setup fee, short contract duration
  • free of charge testing

blueSIP Business DSL

You do not have an Internet connection yet? No problem!

blueSIP Business DSL is your solution for get connected to the Internet and IP Telophony from one provider.

Depending on your needs we offer ADSL or SDSL with up to 16 MBits/s as a single line up to managed VPNs.

blueSIP Business DSL is available in Germany only.

Unified Communication Solutions

You are planning to replace your legacy PBX system by a modern VoIP solution?

As certified Cisco Select Partner we would be happy to provide Cisco Unified Communication solutions for you.

Please send your request to our sales team (