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The History of VoIP (Full Version)

The History of VoIP Voice over Internet Protocol, abbreviated VoIP, is a fairly recent technology. It goes by many names, including Voice Over Broadband (VoBB), Internet Telephony, IP Telephony, and broadband phone.The advent of the Internet brought with it an abundance of innovation regarding communication. Of course, there was email in the beginning, but then people started wondering whether th...
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Problem on some WiFi networks with the VoIP (SIP) Groundwire App

We have had a couple of instances where clients have been unable to make outbound calls with their PrepayGEO VoIP (SIP) accounts using the Groundwire app. In all cases the client could receive inbound calls, but could not make outbound! This is due to a proxy configuration issue which occurs on some internet broadband/DSL routers. This can be resolved by following the below instructions. 1.C...
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SMS over PSTN Phone Lines (Endorsed by Texecom Ltd)

        Vodafone the last man standing? SMS over PSTN phone lines has been used in varying industries for many years, and was often sold as an additional service by alarm companies, allowing the user to be notified of alarm conditions, and open/close events. For many years there were two main players operating the service in the UK, O2 and Vodafone. In 2012 th...
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Problems with TAP SMS over PSTN

Problem: Having only just realized that the O2 sms gateway is not reliable [when I first realised I should have had alerts, I thought my SD2 dialler had died], I have contacted O2 who are looking into the service, and they maintain that it should be running at the time of writing [November 2011] but advise me that it will cease operation around April 2012. I have discovered a long list of TAP ...
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TFS EMEA Technical Support Services TIB072INT12 SMS and G2 v1.51 Update

Date of issue: 16 January 2012 Purpose: This Customer Advice Note (CAN 039) provides information relating to the SMS functionality from Galaxy control panels using PSTN landlines and information regarding an update to the G2 Control Panel. Problem: The following email extract has been sent to us by BSIA (British Security Industry Association), who have received information regarding the O2 net...
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