Supports up to 1,000 registered users and 150 concurrent calls (120 with SRTP encryption). Designed to grow with your business without re-investing in hardware.

The free Grandstream Wave App enables instant voice and messaging communications from Android, iOS, web browsers, and desktops — keeping teams connected anywhere.

Integrated Instant Messaging (IM) and audio web meeting platform with 7 virtual conference rooms hosting up to 120 participants simultaneously — no third-party subscription needed.

4 FXO ports connect seamlessly to PSTN/ISDN lines while 4 FXS ports support existing analog phones and fax machines — preserving your legacy infrastructure investment.

Secure boot, unique device certificates, random default passwords, SRTP/TLS encryption, Fail2Ban, automated NAT firewall traversal, and IP blacklist/whitelist protection.

Hybrid cloud service enables remote users to access the on-premise PBX securely — combining the control of on-site deployment with the accessibility of a cloud phone system.

Three auto-sensing Gigabit RJ45 network ports with integrated PoE+ support power Grandstream IP phones directly — eliminating separate power adapters and simplifying cable management.

Auto-discovery and zero-configuration provisioning for all Grandstream SIP endpoints. GDMS cloud management platform enables remote setup, monitoring, and maintenance from anywhere.

Open API supports custom third-party integrations with CRM platforms, PMS hotel systems, and business applications — connecting your phone system with existing workflows.

All features — including IVR, call queuing, voicemail, conferencing, recording, and analytics — are included at no additional cost. One purchase, lifetime capabilities.

Multi-level IVR with time-based routing, call queues, ring groups, DID/DOD, follow-me, and customizable dial plans give you complete control over how calls are handled.

Built-in call detail records (CDR), reporting dashboards, and analytics tools provide visibility into call volumes, queue performance, and communication patterns.