https://phile.news/business-voip-market-challenges-%ce%ba%ce%b1%cf%84%ce%ac-%cf%84%ce%b7%ce%bd-%cf%80%ce%b1%ce%bd%ce%b4%ce%b7%ce%bc%ce%af%ce%b1-covid-19-economic-growth-by-players-inphonex-llc-usa-west-corporation.html
Business Voip Market Challenges κατά την Πανδημία COVID-19, Economic Growth by Players - InPhonex LLC (USA), West Corporation (USA), Telenor Group (Νορβηγία), ShoreTel, Inc. (ΗΠΑ), Orange Business Services (Γαλλία), Verizon Enterprise Λύσεις (ΗΠΑ), Viber Media S. rl (Κύπρος) κ.λπ.