PS_VOIP01 1. Install and Configure Yeastar IP-PBX. 2. Configure STC SIP/Analog Trunk 3. Configure IP-Phones 4. Configure Outbound & Inbound Routes for external calls 5. Configure Calling privileges for outgoing calls 6. Configure Queue, Conference and Ring Groups if needed. 7. Configure two level IVR Configuration (welcome message) to include one Arabic and one English IVR from customer side. 8. Handover for the system works with high efficiency. we are not resposible for any pulling