OSS/BSS, Network Security & TelecommunicationsViettel Ranks No.1 Globally in Telecom Brand StrengthPR NewswireMarch 20, 2026March 25, 2026 by PR NewswireMarch 20, 2026March 25, 2026025 Viettel Group has been ranked as the world’s strongest telecom brand, achieving a Brand Strength Index (BSI) score of 89.9/100 and an AAA+ rating, the...
