Результати пошуку - "Telephone Private branch exchanges"

The 3CX IP PBX tutorial develop a fully functional, low cost, professional PBX phone system using 3CX / за авторством Landis, Matthew M.

Предмети: “...Telephone Private branch exchanges....”
An electronic book accessible through the World Wide Web; click to view

FreePBX 2.5 powerful telephony solutions configure, deploy, and maintain an enterprise-class VoIP PBX / за авторством Robar, Alex

Предмети: “...Telephone Private branch exchanges Data processing....”
An electronic book accessible through the World Wide Web; click to view