John Downing
19
Seguidores
Personal Information
Organização/Local de trabalho
Other
Cargo
Engineer
Setor
Technology / Software / Internet
Sobre
Engineer and business leader exploring all aspects of leadership, finance, tech, and business innovation.
Contact me anytime, John AT TrainingCity dot com, to discuss Training & Development, Edu-Tech, IT Training, or anything Telecom/IT related such as SDN, NFV, & VoIP/SIP Security.
Marcadores
voip course
sip training
pstn
voip
sip trunking
tcp/ip
sip
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