Microsoft taps Telefonica to deliver Live Messenger VOI Archives Published: October 25, 2008 Reading time: Less than 1 min. FacebookTwitterWhatsAppLinkedinEmail Microsoft has chosen Telefonica as the exclusive carrier to provide VoIP (voice over Internet Protocol) services to Windows Live Messenger users in the U.S. and some South American countries, the companies said Friday. FacebookTwitterWhatsAppLinkedinEmail Related articles Fauji Fertilizer Company Goes Live With SAP SuccessFactors Employee Central Wired December 14, 2025 Gladinet CentreStack And Triofox Flaw Actively Exploited Through Hard Coded Cryptographic Keys Risk & Resilience December 13, 2025 React2Shell Exploitation Expands As New Malware Families Target Vulnerable Systems Risk & Resilience December 13, 2025 Sky47 Limited And IOTA Solutions Form Strategic Partnership To Advance Monitoring Services Wired December 12, 2025