YST-P-SE-UP-EXPANSION - Yeastar Expansion Package, support 100 extension

Enables advanced features for the P Series PBX System. It enables the same features as the Enterprise Plan Initial Package, which includes everything from the Ultimate Plan -- extensive offerings for Call Center, Remote Access Service, Instant Messaging, CRM Integration and more. The package also includes video conferencing via WebRTC using the Linkus Web Client -- with screen sharing, in-meeting chat, HD audio and video and more.