Product Description
Overview
The Grandstream GRP2604 Series is a professional 3-line IP phone designed for enterprises, service providers, and large-scale deployments. With zero-touch provisioning, enterprise-level security, and clear HD audio, the GRP2604 series ensures reliable and consistent communication for modern work environments.
Series Highlights
- Supports 3 lines and up to 6 SIP accounts
- Up to 3 call appearances
- 5-way audio conferencing
- HD audio on handset and full-duplex speakerphone
- AI noise reduction with Noise Shield technology
- Swappable faceplate for easy logo customization
- Centralized provisioning and monitoring via Grandstream GDMS
Variants & Connectivity
| Model | Network & Power |
|---|---|
| GRP2604 | Dual Gigabit Ethernet, External Power Adapter |
| GRP2604P | Dual Gigabit Ethernet with PoE (IEEE 802.3af) |
Display & Interface
- 2.7 inch backlit graphical LCD (132 × 64)
- 3 line keys with dual-color LED indicators
- 10 BLF keys for quick access
- 4 XML programmable context-sensitive soft keys
- 8 dedicated function keys including message, transfer, headset, mute, redial, speaker and volume
- RJ9 headset port with EHS support for Plantronics, Jabra and Sennheiser
Audio & Call Handling
- Wideband HD voice support
- Call hold, transfer, forward, park and pickup
- Shared Call Appearance (SCA/BLA)
- Call waiting and auto answer
- Downloadable phonebook (XML / LDAP) up to 2000 contacts
- Call logs up to 800 records
Security & Management
- Secure boot and dual firmware images
- Encrypted configuration and call data storage
- Supports TLS, SRTP, 802.1X and AES encryption
- Provisioning via GDMS, TR-069, FTP, TFTP, HTTP and HTTPS
Physical Details
- Adjustable desk stand with two viewing angles (39° and 45°)
- Wall mountable (wall mount sold separately)
- Dimensions: 214 × 206 × 68 mm (with handset)
- Unit weight: approx. 790 g
Ideal For
- Corporate offices and enterprises
- Call centers and customer support desks
- Service providers and managed VoIP deployments
- Remote and hybrid work environments
Click here for Product Datasheet
Specifications based on the official Grandstream GRP2604 Series datasheet.