Dipus Telecom Bangladesh
- International VoIP Wholesale Provider
- Phone To Phone
- Cisco Systems
- GSM-Central
It is a call which is made over internet protocol (VoIP). For example,
one can call using Google Voice to other recipient located miles away. Such
call can also be international.
Opto Network Pvt. Ltd.
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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