Teladvance is an OEM devices and technology solutions distributor, serving the US, Canada, and Latin America. Teladvance is p ... art of the Texas-based ECHO Consolidated Holding Group (ECHG), a division of Envela Corporation (NYSE American:ELA). We have a comprehensive portfolio of value-added reseller for IT-as-a-Service solutions delivering the latest technology for IoT, Cloud, Unified Communications, Contact Center, Networking, Mobility, and more. read more