Grandstream GRP2604 Essential IP Phone

The Grandstream GRP2604P is a carrier-grade 3-line IP phone designed for enterprises and service providers. It supports PoE, HD audio with noise-shield technology, and centralized provisioning through GDMS. It also features EHS headset support, advanced security, and a customizable faceplate, making it ideal for scalable and secure deployments.

Grandstream GRP2604 Essential IP Phone Specifications

• Lines & SIP Accounts: 3 lines, 6 SIP accounts, 3 call appearances

• Display: 2.7″ backlit graphical LCD (132×64 pixels)

• Networking: Dual Gigabit Ethernet ports with integrated PoE (IEEE 802.3af, Class 1)

• Audio: HD audio on handset and speakerphone; full-duplex with AI-powered noise shield

• Conferencing: Supports 5-way local audio conferencing

• Headset Support: RJ9 port with EHS (compatible with Plantronics, Jabra, Sennheiser)

• Codecs Supported: Opus, G.711, G.722, G.723, G.726, G.729, iLBC

• Telephony Features: Call hold, transfer, park, pickup, BLA/SCA, hot-desking, LDAP/XML phonebook (up to 2,000 entries), call history (800 records), custom ringtones

• Security: Secure boot, dual firmware images, AES-256 encrypted configuration, SRTP, TLS, 802.1x authentication

• QoS Support: VLAN tagging (802.1Q/p), DiffServ, MPLS

• Provisioning & Management: Zero-touch provisioning via GDMS, TR-069, or encrypted XML; firmware updates via FTP/TFTP/HTTP/HTTPS

• Power Supply: PoE-powered or optional external power adapter (5V DC, 600mA)

• Dimensions: Approx. 214 × 206 × 68 mm

• Weight: Approx. 780 g

• Operating Conditions: 0–40°C (operation), -10–60°C (storage); humidity 10–90% non-condensing