Bankai International is a leading carrier of VoIP based long distance international telephone calls and provider of retail prepaid calling card services. Bankai International provides high quality services of billions of minutes for international calls th
Bankai International is a leading carrier of VoIP based long distance international telephone calls and provider of retail prepaid calling card services. Bankai International provides high quality services of billions of minutes for international calls through Bankai International's VoIP Network.
Opto Network Private Limited is an Internet Telephony Service Provider in India. Head office is in Noida, India, Band having branches in Bangalore and Mumbai.
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