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STUN Servers

What is STUN? A STUN (Session Traversal of User Datagram Protocol [UDP] Through Network Address Translators [NATs]) server allows NAT clients (i.e. IP Phones behind a firewall) to setup phone calls to a VoIP provider hosted outside of the local network. What does a STUN server do? The STUN server allows clients to find out their public address, the type of NAT they are behind and the Internet s...
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Huawei’s use of Android restricted by Google

Google has barred the world's second-biggest smartphone maker, Huawei, from some updates to the Android operating system, dealing a blow to the Chinese company. New designs of Huawei smartphones are set to lose access to some Google apps. The move comes after the Trump administration added Huawei to a list of companies that American firms cannot trade with unless they have a license. Google...
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VoIP to replace ISDN

After nearly 25 years of continuous service, ISDN channels are finally coming to their end of days. As more and more businesses migrate away from ISDN technologies we explore the reasons for the decline and the replacements on offer to businesses in more detail. So what is ISDN? ISDN stands for integrated services digital networks. It is a standard developed to cover a range of mediums like voi...
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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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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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Abandoned and silent calls

The phone rings, you rush to answer but there's no-one on the line. Abandoned and silent calls can be annoying and irritating at the best of times. These are also known as CC and ping calls. But for some people – for example, those living alone – these calls can be particularly frightening. This guide explains more about these calls, what can cause them and what you can do about them. What...
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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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Dial-A-Taxi – One Number for all Cornwall taxis

Welcome to DIAL-A-TAXI One Number for all Cornwall taxis. Call 0870-945-8294 for Wadebridge, Bodmin, Newquay, St Austell,. Truro, Falmouth and Penzance taxis. Calls cost 13p per minute from a BT phone line. Calls from mobile and other networks may cost more.
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