Grandstream GRP2603 3-Line Essential Carrier-Grade IP Phone

The GRP2603 features 5-way voice conferencing to maximize productivity, integrated PoE and is supported by Grandstream’s Device Management System (GDMS).

• 3 lines, 6 SIP accounts, up to 3 call appearances
• Supported by GDMS which provides a centralized interface to configure, provision, manage and monitor Grandstream devices
• Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets
• Full-duplex speakerphone with HD audio to maximize audio quality and clarity
• Equipped with noise shield technology and AI noise reduction to minimize background noise
• Supports 5-way audio conferencing for easy conference calls
• Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage
• Swappable faceplate to allow for easy logo customization

• 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-MED, LDAP, TR-069, SNMP, 802.1X, TLS, SRTP, IPv6
• 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. 9 dedicated function keys for: MESSAGE (with LED indicator), TRANSFER, HOLD, 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.723.1, 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: Ordinary user and administrator level passwords based on SHA-256 and SHA-256 sess authentication, SIP authentication algorithms based on SHA-256, SHA-256 sess, SHA-512/256, SHA-512/256 sess, MD5 sess. AES security profile, SRTP, TLS call encryption, 802.1X media access control.
• 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
• Operation Temperature: 0°C to 40°C
• Storage Temperature: -10°C to 60°C
• Humidity: 10% to 90% Non-condensing
• Dimension (L x W x H): 214 x 206 x 68mm (with handset)
• Unit weight: 780g
• Package weight: 1140g

• GRP2603 phone
• Handset with cord
• Base stand
• Power supply
• Network cable
• Quick Installation Guide