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Unified Communication & Collaboration Solution The UCM6308A Audio series allows businesses to build powerful and scalable unified communication and collaboration solutions.

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 HighAvailability and local dual deployment


Supports Full-Band Opus voice 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


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