Supports up to 3000 users and up to 450 concurrent calls Zero configuration provisioning of Grandstream SIP endpoints Built-in conferencing & meetings platform; supports desktop, Wave app, and SIP endpoints Wave for Android, iOS, Chrome and Firefox browsers allows communication with all UCM6300 users & solutions ...

2-Line Essential IP Phone Designed for Mass Deployment and Easy Management The GRP2601 features 5-way voice conferencing to maximize productivity, integrated PoE ( GRP2601P ), Wi-Fi support ( GRP2601W ), and is supported by Grandstream’s Device Management System (GDMS). 2 SIP account, 2 lines GDMS online...

6-Line Professional IP Phone Designed for Mass Deployment and Easy Management The GRP2616 features 48 virutal multi-purpose keys (VPKs),  integrated Wi-Fi, Bluetooth support, a 4.3 inch color LCD with swappable face plates for easy logo customization, additional 2.4" display screen, and is supported by Grandstream’s Device Management System (GDMS). <ul...