Graham Francis : The SIP School
Graham Francis
| The SIP Blog is just that; with opinion and analysis on all things SIP in the world of VoIP

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the SIP Survey 2014 is out!

The 2014 SIP survey has been made available today on www.thesipschool.com.  All of you that are existing subscribers and/or students (of The SIP School) will be receiving an email with the link to download the PDF, any new visitors to...
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