ABOUT Cloud Networx

ESI Phone Support

Cloud Networx

Cloud Networx has been providing SC & NC businesses with phone systems, paging systems, voice & data cabling and service support for 30+ years. Located in the Upstate SC & Western NC, we are a team of voice engineers dedicated to remaining loyal to our customer's needs. We remain debt free and easy to deal with in any situation.

Refurb Division
ESI is our # 1 "Used" phone system option supported by the largest inventory stocked locally in our service area. We default and lab these phone systems for weeks and most are upgraded to the latest software revision. The phones (in A condition) even come with new handsets. 

Why Cloud Networx

Our Process

We purchase hundreds of pounds of ESI equipment every month. In our 3000 sq ft refurb center everything is tested and cleaned and retested before anything is released for sale.

Phone Systems

Every ESI phone system is reset to factory passwords, batteries replaced & 100% tested for weeks before released for sale. 

Buying Power

If we do not have your ESI part, we promise one of our network partners does. Together with our nationwide ESI partners we can provide reliable prompt services & installations. 

Other Brands

 Vertical Vodavi


SBX, STS, Triad, Starplus phones & repair parts

NEC America


dTerm, DSX. SL1100, 8100 phones & repair parts

Nortel Avaya


T & M series phones, Norstar phones & repair parts.