Grandstream Ucm6302 Voip Ip PBX System 500 Users (GH₵3,850, New) in Lapaz, Accra, Greater Accra. -Supports up to 1500 users and up to 200 concurrent calls -Zero configuration provisioning of Grandstream SIP endpoints -Built-in Instant Messaging (IM), Audio Conferencing & Web Meetings platform that supports access from computers, mobile devices, and SIP endpoints -Free Wave App allows easy voice & Instant Messaging (IM) communications using desktops, Web, and Android/ iOS devices API available for third-party integrations, including CRM and PMS platforms Advanced security protection with secure boot, unique certificate and random default password to protect calls and accounts Three Gigabit auto-sensing RJ45 network ports with integrated PoE+ and support NAT router Automated NAT firewall traversal service facilitates secure remote connections Enhanced reliability with support for Hot Standby High-Availability and local dual deployment