IP Phones and Terminals / Grandstream
GRP2604 (P)
The GRP2604 is a 3-line IP phone that features 4 programmable keys for BLF/speed dial, making it an excellent choice for receptionists and administrative staff who need quick call handling.
Main features
- 3 SIP accounts and 3 line keys.
- 2.41” (132 × 64 px) backlit graphical LCD.
- 5-way audio conferencing.
- 4 programmable keys for BLF/Speed Dial.
- Variants:
- GRP2604 – Standard.
- GRP2604P – With PoE.
- HD audio on handset and speaker.
- Noise Shield technology for clearer calls.
- Full-duplex speakerphone.
- EHS headset support with Plantronics, Jabra, and Sennheiser.
- Advanced security with secure boot and data encryption.
- Centralized remote management via GDMS.
Technical specifications
SIP Lines
3
Display
2.41” 132 × 64 px backlit LCD
Audio
HD audio, Noise Shield, full-duplex
Local Conferencing
Up to 5 participants
Ethernet Ports
2× 10/100 Mbps
PoE
Available on GRP2604P
Programmable Keys
4 (BLF/Speed Dial)
Headset / EHS
Yes, Plantronics, Jabra, Sennheiser
Security
Secure Boot, Dual Firmware, Data Encryption
Management
GDMS, TR-069
About the brand
The Grandstream GRP series combines ease of use, enterprise-grade security, and centralized management, making the GRP2604 a reliable phone for offices and receptions with high call volumes.
Video about the product
The Grandstream GRP series combines ease of use, enterprise-grade security, and centralized management, making the GRP2604 a reliable phone for offices and receptions with high call volumes.

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