www.fcs.org.uk
The Federation of Communication services - looking after telecoms
resellers in the UK.
www.ofcom.org.uk
The Office of Communications for the UK market - the UK telecoms
regulator.
www.thesipschool.com
The SIP School is recognised and endorsed 'globally' for learning
all about SIP, the Session Initiation Protocol and
to get qualified as an SSCA®.