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History of VoIP (Short Version)

History of VoIP Voice over Internet Protocol (VoIP) transmission began in 1973 as a result of the experimental Network Voice Protocol invented for the ARPANET. However, it wasn’t until 1995 that the first Internet Phone Software – Vocaltec – appeared. Vocaltec brought to market the first internet phone software called the Internet Phone. The Vocaltec software compressed the voice signal, translat...
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How PSTN and ISDN switch off will impact your business

How PSTN and ISDN switch off will impact your business. As we all know, in 2015 BT announced that they will be switching off the PSTN and ISDN networks by 2025. With this, BT will no longer accept any new orders or amendments to services applicable to any ISDN products from 2020. Once the switch-off has taken place, customers will be migrated to the IPEX (IP Exchange) core network using SIP (S...
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BT announce the end of PSTN and ISDN

BT Openreach have announced they will be switching off their existing PSTN and ISDN network by 2025 and switching to a single IP network. Find out about the alternatives and how to be prepared. Businesses have 8 years to look for an alternative solution to their telephony and internet needs. Fortunately there are a range of affordable solutions available. What is PSTN? “The public switched tele...
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O2 network and the TAP gateway used for SMS texting via PSTN

Switch to OpenTAP, the UK's Leading Managed TAP Gateway, as recommended by Texecom and Honeywell. Honeywell Security Group has recently received the following email extract from the BSIA (British Security Industry Association), regarding the O2 network and the TAP gateway used for SMS texting via PSTN. The O2 centre number (07860 980480) has been unreliable for a period of time, and even thoug...
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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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SMS Functionality from Galaxy Control Panels Using PSTN

Honeywell Security Group has recently received the following email extract from the BSIA (British Security Industry Association), regarding the O2 network and the TAP gateway used for SMS texting via PSTN. The O2 centre number (07860 980480) has been unreliable for a period of time, and even though the panel will transmit the message, a failure by the O2 server will result in an “SMS Comm Fail”...
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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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IMPORTANT ANNOUNCEMENT REGARDING TEXECOM SMS SERVICE CENTRE NUMBERS

Please see below for an important announcement from Texecom regarding the SMS Service Centre Numbers: SMS Service Centre Numbers Texecom have been notified that the O2 network and the TAP gateway used for SMS texting via PSTN will be switched off at the end of March 2012. The O2 centre number (07860 980480) has been unreliable for a period of time and on numerous occasions the service has...
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