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So, for instance, often times an international call appears as a 0266XXXXXX number, meaning the SIM Box fraudster is terminating the call through an Airtel SIM card.
And UPM Telecom doesn’t use any SIM from any telecommunication company in Ghana but ONLY uses VOIP.
Voice over IP (VoIP, abbreviation of voice over Internet Protocol) commonly refers to the communication protocols, technologies, methodologies, and transmission techniques involved in the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, IP communications, and broadband phone.
Internet telephony refers to communications services —voice, fax, SMS, and/or voice-messaging applications— that are transported via the Internet, rather than the public switched telephone network (PSTN). The steps involved in originating a VoIP telephone call are signaling and media channel setup, digitization of the analog voice signal, encoding, packetization, and transmission as Internet Protocol (IP) packets over a packet-switched network. On the receiving side, similar steps (usually in the reverse order) such as reception of the IP packets, decoding of the packets and digital-to-analog conversion reproduce the original voice stream. Even though IP telephony and VoIP are used interchangeably, IP telephony refers to all use of IP protocols for voice communication by digital telephony systems, while VoIP is one technology used by IP telephony to transport phone calls.
Early providers of voice over IP services offered business models (and technical solutions) that mirrored the architecture of the legacy telephone network. Second generation providers, such as Skype have built closed networks for private user bases, offering the benefit of free calls and convenience, while denying their users the ability to call out to other networks. This has severely limited the ability of users to mix-and-match third-party hardware and software. Third generation providers, such as Google Talk have adopted the concept of Federated VoIP – which is a complete departure from the architecture of the legacy networks. These solutions typically allow arbitrary and dynamic interconnection between any two domains on the Internet whenever a user wishes to place a call.
I personally don’t have problem with companies or telecoms using VOIP because it’s not a crime, until Ghana Police Service, Telecoms in Ghana, National Communication Authority and Ministry of Communication start to fight Skype, Google Talk and Viber among other software’s, we have to deal with our own communication companies instead of fighting UPM Telecom and other hidden telecommunications groups using VOIP to communicate to make calls cheaper and easy. This is just part one and secrets of our Ghanaian Telecommunications will be reveal soon.
By: Nana Adu-Boafo Jr. ~ Computer Network Engineer