Grandstream Central &- Grandstream IP PBX for Sale | Professional Communication Systems Solution A professional Grandstream central system designed to manage communications within companies and institutions with high efficiency and flexibility in expansion. Supports management of multiple internal and external lines Call Transfers and intelligent call routing Call recording and review capability Supports integration with IP Phone and VoIP devices Suitable for companies/offices/clinics/and commercial projects Easy integration with existing network systems without complexity Provides you with an organized communication system that reduces costs and increases communication efficiency within the facility, with full control over users and lines.