SIPSERVICE was a Voice over IP (VoIP) service provider based in Switzerland that also operated in Germany and Russia. The service offered free calls between...
7 KB (1,138 words) - 22:24, 9 June 2024
telephone systems Sipgate Düsseldorf Germany VoIP and mobile phone services sipservice Winterthur Switzerland VoIP service provider TELES AG Berlin Germany VoIP...
3 KB (14 words) - 00:40, 5 October 2024