The UCM6300 Audio series enables enterprises to create strong and scalable unified communication and collaboration solutions. This IP PBX Audio series provides a platform that integrates basic business communications needs such as voice, instant messaging (IM), voice meetings, audio web meetings, data, analytics, mobility, facility access, intercoms, and more. Features • Supports up to 250 users and up to 50 concurrent calls • Zero configuration provisioning of Grandstream SIP endpoints • Built-in Instant Messaging, Audio Conferencing & Web Meetings platform supporting access from computers, mobile devices, and SIP endpoints • Wave for Android, iOS, Chrome and Firefox browsers allows communication with all UCM6300 users & solutions • 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 • Supports Full-Band Opus voice codec and H.264/H.263/ H.263+/H.265/VP8 video codec, jitter resilience up to 50% packet loss • Compatible with GDMS for cloud setup, management and monitoring • Based on Asterisk* version 16 open source telephony operating system