- British Telecom
- Belgacom International Carrier Services
- Deutsche Telekom
- KPN GLobal Carrier Services
- iBasis
- Romtelecom
- Rostelecom
- Slovak Telekom, a.s.
- Telecom
- Italia Sparkle
- T-Mobile Czech Republic
- Telefonica O2 Czech Republic
- Telekom Austria TA AG
- Telekomunikacja Polska
- UPC Czech Republic
- UPC Hungary
- UPC Poland
- VerizonBusiness
- Orange Slovensko
- Skype
Our customers
Customer segments:
Incumbents, Mobile operators, VoIP providers, Other voice carriers, Cable TV providers, Resellers, Portals, Local ISPs, VAS / Content provides
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