Audio Only 1000 Users, 4 FXO, 4 FXS Based on Asterisk version 16 open-source telephony operating system 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 Compatible with GDMS for cloud setup, management, and monitoring.

• 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.