Author: vocale
The SIP School
Posted: August 22, 2018 The SIP School™ is the web’s leading SIP training and Certification service that has gained the backing of manufacturers and organizations that are prominent in the Telecommunications industry. Its SSCA® certification program is the only ‘globally recognized’ certification…
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Posted: December 23, 2010 http://www.thesipschool.com The SIP School is a SIP Training and Certification organization with support from a whole host of Communications businesses and associations – The full list of partnerships can be found at http://www.thesipschool.com/industry.html Training courses available – click…
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Phone System 