The GAC2500 is an Android-based enterprise SIP conference phone optimized for voice conferencing with HD audio and flexible deployment options. It often pairs with GVC series systems as the audio endpoint. grandstream.com

🔊 Technical Specifications

Audio & Conferencing

• 6 SIP accounts with 7-way voice conferencing. grandstream.com

• Full HD audio with wideband codec support (G.711, G.722, Opus, and more). FGTECH STORE

• Built-in conference bridge and touch-screen dialing. grandstream.com

Display & UI

• 4.3″ capacitive touch screen (800×480). Grandstream India

Connectivity

• Auto-sensing Gigabit Ethernet with PoE⁺ support. grandstream.com

• Integrated dual-band Wi-Fi. grandstream.com

• Bluetooth 4.0 for headset/headset sync and mobile data. grandstream.com

• RJ48 daisy chain port (can link two GAC2500 units). grandstream.com

Telephony Features

• Standard VoIP features: hold, transfer, forward, park/pickup, call logs, phonebook (LDAP/XML), click-to-dial, hot desking, custom dial plans. FGTECH STORE

Security

• TLS, SRTP, AES encryption, HTTPS. FGTECH STORE

Platform

• Android 4.4 with full access to Google Play apps. Grandstream India

🧠 Key Combined Features

✅ SIP + H.323 interoperability and cross-platform bridging. grandstream.com
✅ Embedded MCU for multi-way conferencing without extra servers. grandstream.com
✅ Flexible connectivity: Ethernet, Wi-Fi, Bluetooth. grandstreamdubai.com
✅ Android ecosystem for additional applications. Grandstream
✅ Professional video & audio quality (12× PTZ + HD audio). grandstreamdubai.com

📌 Typical Use Cases

• Boardrooms and large meeting rooms

• Hybrid SIP + cloud conferencing setups

• Integrating mobile/third-party apps with enterprise SIP video systems

• Organizations requiring local multipoint control without external infrastructure