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voice

What does SIP mean in the telecoms industry?

The Session Initiation Protocol (SIP) is a communications protocol for signalling and controlling multimedia communication sessions. The most common applications of SIP are in Internet telephony for voice and video calls, as well as instant messaging, over Internet Protocol (IP) networks.
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Make a call with WiFi Internet Calling

With WiFi Calling, you can place a phone call if you have a WiFi connection in an area with little or no mobile coverage. Learn how to make a voice call using WiFi Calling today with Open Telecom. Give us a call on (+44) 0808-117-6736 to discuss how you could start saving time and money by switching to the Open Telecom VoIP phone network!
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Mobile VoIP

With a mobile VoIP phone, cell phone users can enjoy more flexibility in calling times than a cellular voice plan provides, with fewer restrictions. VoIP mobile phone service means that a mobile VoIP user can make unlimited inexpensive or free calls using voice over IP technology at any time. Find out more.....
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Open Telecom International chooses PortaBilling and PortaSwitch Platform to build cutting edge retail services

We are proud to announce that Open Telecom International Ltd, has now uses PortaBilling and PortaSwitch for all our products and services. Porta has enabled us to bring cutting edge voice products and services to our customers, along with high end quality carrier pre-select call routing and sip-voip voice and data quality which according to customer satisfaction is better than Vonage and Skype....
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