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Emergency Calls UK

DIDcomms now provides access to 999/112 public emergency call services to VOIP customers within England, Wales, Scotland and Northern Ireland. It is possible that these services may become unavailable as a result of things over which we have no control over, for example, the failure of your internet service provider (ISP) or internet connection. In such circumstances, all serv...
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Are you looking for another VoIP phone provider?

Are you looking for another VoIP/SIP phone provider, more reliable, with better connectivity and cheaper calls? Try DIDcomms! We have been established since 2004, formerly known as Open Telecom International. We are well known for our impeccable service and support of our customers. Our network is provided by our leading grade 4/5 telecom switch provider Portaone and some of our customers say ...
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Why every HR agency needs Services of Termination VOIP Providers?

If you are a HR agency, making hundreds of calls to scout for right talents then the wholesale A-Z VOIP termination services are absolutely necessary for you. The calls made by an employment agency or firm are completely different in purpose and pitch than conventional marketing calls. Though clarity is required in both these calls, it is absolutely essential for HR agencies, why? The end custo...
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PrepayGEO Unlimted (UK VoIP Numbers)

PrepayGEO Unlimted, the unlimited calling plan with free UK calls to landlines and mobiles. Get the PrepayGEO Unlimited Plan from DIDcomms, go on! It comes with free incoming calls, free UK calls to landlines and mobiles and free voicemail... great! Plus you get all these other features included free of charge all for just "£19.95 per month including VAT." 24/7 call management online custome...
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Important changes to your 084 and 087 numbers

The communications regulator OFCOM are making changes to the way consumers are charged for calling 084 and 087 numbers. These changes have been introduced to make the call charges more transparent and easier to understand. Therefore this is great news for your business and more importantly your customers, who will feel more comfortable calling your 084 or 087 number. All DIDcomms cust...
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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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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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