• Protocols/Standards

  SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A

  record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR069, SNMP, 802.1x, TLS, SRTP, IPv6

• Network Interfaces Dual switched auto-negotiation 10/100/1000 Mbps Ethernet ports, integrated PoE

  (GRP2604P only)

• Graphic Display 132 x 64 (2.7’’) backlit graphical LCD display

• Feature Keys

  3 line keys with dual-color LED and support for 6 SIP accounts, 4 XML

  programmable context-sensitive soft keys, 5 (navigation, menu) keys. 10 BLF keys,

  8 dedicated function keys for MESSAGE(with LED indicator), TRANSFER, HEADSET,

  MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL

• Auxiliary Port RJ9 headset jack (allowing EHS with Plantronics & Jabra &Sennheiser headsets)

• Voice Codecs and Capabilities

  Support for G.729A/B, G.711µ/a-law, G.726, G.722(wide-band), G.723,iLBC, OPUS,

  in- band and out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC,

  AGC, AJB

• Telephony Features

  Hold, transfer, forward, 5-way conference, call park, call pickup, shared-call appearance (SCA)/bridged-line-appearance(BLA), downloadable phonebook (XML,

  LDAP, up to 2000 items), call waiting, call log (up to 800 records), off-hook auto

  dial, auto answer, click-to-dial, flexible dial plan, hot-desking, personalized music

  ringtones and music on hold, server redundancy, and fail-over

• HD Audio Yes, HD handset and speakerphone with support for wideband audio

• Base Stand Yes, 2 angle positions available (39° & 45°), Wall Mountable (*wall mount sold

  separately)

• QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS

• Security

  User and administrator level passwords, MD5 and MD5-sess based authentication,

  256-bit AES encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot

• Multi-language English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese,

  Russian, Croatian, and more

• Upgrade/Provisioning Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR069 or AES encrypted XML configuration file

• Power & Green Energy Efficiency Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA;PoE:

  IEEE802.3af Class 2, 3.84W-6.49W; IEEE802.3az (EEE) (GRP2604P Only)

• Temperature and Humidity

  Operation: 0°C to 40°C

  Storage: -10°C to 60°C

  Humidity: 10% to 90% Non-condensing

• Package Content GRP2604 phone, handset with cord, base stand, universal power supply (GRP2604

  only), network cable, Quick Installation Guide, BLF Lables

• Physical Dimension: 214mm (L) x 206mm (W) x 68mm (H) (with handset)

  Unit weight: 790g; Package weight: 1100g for GRP2604P & 1150g for GRP2604

• GRP2604/GRP2604P Compliance

  FCC: Part 15 Class B; FCC Part 68 HAC;

  CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1;

  RCM: AS/NZS CISPR32; AS/NZS 62368.1; AS/CA S004;

  IC: ICES-003; CS-03;

3-Line Essential IP Phone
Part of the GRP series of Carrier-Grade IP Phones, the GRP2604 is an essential 3-line model designed with zero-touch provisioning for mass deployment and easy management. It features a sleek design and a suite of next-generation features including 5-way voice conferencing to maximize productivity, integrated PoE (GRP2604P),
full HD audio on both the speaker and handset to allow users to communicate with the utmost clarity, EHS
support for Plantronics, Jabra, and Sennheiser headsets and multi-language support. The GRP series includes
carrier-grade security features to provide enterprise-level security, including secure boot, dual firmware images
and encrypted data storage. For cloud provisioning and centralized management, the GRP2604 is supported
by Grandstream’s Device Management System (GDMS), which provides a centralized interface to configure,
provision, manage and monitor deployments of Grandstream endpoints. Built for the needs of on-site or
remote desktop workers and designed for easy deployment by enterprises, service providers, and other high volume markets, the GRP2604 offers an easy-to-use and easy-to-deploy voice endpoint.