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- Are there any phone numbers that VoIP phones can't call?
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'How to...' user guides
From getting started to advanced set up, let our extensive How To articles help you get the very best from your services and hardware. You can browse by product category or use our search to quickly find what you are looking for.
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How to set up the Linksys SPA 941/942 VoIP phone
A step-by-step guide to help you get the most from your Linksys SPA VoIP phone.
Category: Phone Services » Getting started
How to set up your Thomson TG585 router
How to successfully set up and get the best from your Thomson TG585 router.
Category: Broadband Internet » Hardware
How to complete the Keep My Number porting form
Let us guide you through the paperwork and help you keep your number
Category: Phone Services » Doing more
How to understand your SIP error codes
Some SIP phones and all PBX's will display an error or a prompt using the SIP Response codes, this document contains a list of SIP codes which can help you diagnose problems.
Category: Phone Services » Got a problem
How to set up Trixbox CE for an IAX inbound trunk
Step-by-step guide to help you get the best from your inbound IAX calls using Trixbox CE.
Category: Phone Services » Doing more
How to set up Trixbox behind NAT
Simple guide to correctly setup your Trixbox in a NAT environment.
Category: Phone Services » Doing more
How to reconfigure the Thomson TG585
If your Thomson TG585 is experiencing a technical issue and it has been factory reset, this guide will get you up and running again.
Category: Broadband Internet » Got a problem
How to set up Trixbox CE for an IAX outbound trunk
Step-by-step guide to help you get the best from your outbound IAX calls using Trixbox CE.
Category: Phone Services » Doing more
How to configure the Siemens Gigaset range of IP Phones (Advanced)
This guide discusses how to configure the Siemens Gigaset range of phones via the Web Interface
Category: Phone Services » Getting started
How to use your Gradwell Multi-User VoIP Service
The Multi-User VoIP product is very powerful and this document provides an overview of the features it offers.
Category: Phone Services » Multi User VoIP
