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SIP/VoIP

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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How to Use a VPN with VOIP

Fix VOIP audio and connectivity issues with a VPN Unblock Skype, Viber, and Google Hangouts Secure your video and voice chats with 256-bit encryption Save money on international calls Get instant access to more sites and services from anywhere in the world Get ExpressVPN  Why use a VPN for VoIP? Freedom Some countries in the Middle East and Asia block VoIP services like Skype...
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Is your country not included on the Free Divert Plan!

Is your country not included in our Free Divert Plan on the 084, 087 and 070 numbers? Did you know that even if your country is not listed on our Free Divert Plan which we offer our customers on our 084, 087 and 070 numbers, you can still benefit from Free Incoming Calls to VoIP phones. Yes that's right! All our 084, 087 and 070 numbers come with Free Forwarding to SIP/VoIP phones! With our...
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Disable SIP ALG and Forward NAT Ports to Stop Dropped Calls

How to open my firewall for VoIP? A VoIP phone system offers your company voice and video calling, presence, business phone system functions, IM, and other communications features. But if your office network is improperly configured, these leading features might not work at all. In fact, internet problems can stop VoIP calls from even taking place. Your office internet connection is likely con...
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SIP Response Codes Session Initiation Protocol

SIP (Session Initiation Protocol) is a signaling application layer protocol designed to create, modify, and terminate a multimedia session over the Internet Protocol. It is the most common protocol used in VoIP technology. In SIP, every network element is identified by a SIP URI (Uniform Resource Identifier) which is like an address. They are broken down as 1xx Provisional Responses, 2xx Successfu...
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Order your Free 0873 UK Number

Our Free 0873 UK Numbers come with a bonus selection of Free call management features, such as Online Account Management, Call Waiting, Voicemail to Email, Time of Day Routing, Virtual Switchboard and Call Queue, Online Billing, Prepay Top-Up, Free Call Forwarding to SIP/VoIP phone or mobile app and UK and International fixed lines and mobiles anywhere anytime! Click here to order your Free 087...
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International calls to Franzcom 084, 087 and 070 numbers from other countries

International call from other countries is now available on our 084, 087 and 070 numbers For a long time now Franzcom (previously known as Open Telecom International) has had trouble with our 084, 087 and 070 numbers not being able to be called from international phone lines. We have had a lot of customer reports about this and our investigations led us back to BT.com. In light of all the evidenc...
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Call Centre Dialler Callback Traffic is no longer allowed and you must adhere to Ofcom Regulations

Call Centre "Dialler Spam Call Traffic" of less than 18 seconds per call is not allowed under Ofcom regulations. Calls of 10 seconds or less per call, meaning the callee has to call back the caller are not permitted by Ofcom. You must meet the 3% abandoned call rate set down by Ofcom regulations. Even our carrier interconnects are now clamping down and blocking traffic on what we like to call "Di...
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