Overview of Grandstream GRP2650
Part of the GRP series of carrier-grade IP phones, the Grandstream GRP2650 is a professional 14-line model designed with zero-touch provisioning for mass deployment and easy management. It combines 16 SIP accounts, 56 virtual multi-purpose keys and a 5-inch color LCD with 5-way voice conferencing, integrated PoE and Wi-Fi 6, Bluetooth, full HD audio and support for EHS (Plantronics) and USB headsets. Up to 4 GBX20 extension modules can be added for 160 extra contacts. Secure boot, dual firmware images, encrypted storage and GDMS management make it ideal for receptionists and busy professionals in hotels, hospitals, clinics and corporate offices.
Technical Specifications – Grandstream GRP2650
Network
| Protocols/Standards | SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, 802.1x, TLS, SRTP, IPV6 |
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| Network Interfaces | Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE |
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Display & Keys
| Graphic Display | 5.0 inch (1280x720) TFT color LCD |
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Network
| Wi-Fi | Integrated dual-band (2.4GHz and 5GHz) Wi-Fi 6 (802.11a/b/g/n/ac/ax) - hardware version 5.0 and above |
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| Bluetooth | Yes, integrated |
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Display & Keys
| Lines | 14 lines |
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| SIP Accounts | 16 SIP accounts |
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| Feature Keys | 14 line keys with up to 16 SIP accounts, 6 XML programmable context sensitive softkeys, 5 navigation/menu keys, 9 dedicated function keys for: MESSAGE (with LED indicator), TRANSFER, HOLD, HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL- |
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| Virtual Multi-Purpose Keys | 56 VPKs |
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| Custom Faceplates | Yes |
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| Extension Module | Yes, GBX20; connect up to 4 GBX20 modules for a total of 160 contacts/extensions |
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Audio
| Auxiliary Port | RJ9 headset jack (allowing EHS with Plantronics headsets), USB |
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| Voice Codecs and Capabilities | Support for G.729A/B, G.711µ/a-law, G.726-32, G.722 (wide-band), G723.1, iLBC, OPUS, in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO) |
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| HD Audio | Yes, HD handset and speakerphone with support for wideband audio, dual microphone |
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Telephony Features
| Audio Conferencing | 5-way audio conferencing |
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| 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 2000 records), XML customization of screen, 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 |
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Network
| QoS | Layer 2 QoS (802.1Q, 802.1P), 802.11e (WMM) and Layer 3 (ToS, DiffServ, MPLS) QoS |
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Security & Management
| 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 |
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| Multi-language | English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Chinese, Korean, Japanese and more |
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| Upgrade/Provisioning | Firmware upgrade via FTP/TFTP/TFTPS/HTTP/HTTPS, mass provisioning using GDMS/TR-069 or AES encrypted XML configuration file |
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| Device Management | Yes, GDMS |
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Power
| Power Adapter | Universal power adapter included: Input 100-240V; Output +12V, 1.0A |
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| PoE | Integrated Power-over-Ethernet (802.3af) |
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| Energy Efficiency | IEEE 802.3az Energy-Efficient Ethernet |
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| Max Power Consumption | 6.2W (power adapter) |
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Environment
| Operating Temperature | 0°C to 40°C |
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| Storage Temperature | -10°C to 60°C |
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| Humidity | 10% to 90% Non-condensing |
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Physical
| Base Stand | Yes, 2 angle positions available, wall mountable (wall mount sold separately) |
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| Package Content | GRP2650 phone, handset with cord, phone stand, 12V power adapter, network cable, Quick Installation Guide |
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| Dimensions | 263mm x 210mm x 82mm |
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| Unit Weight | 1050g |
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| Package Weight | 1620g |
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Compliance
| FCC | Part 15 (CFR 47) Class B |
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| CE | EN55022 Class B; EN55024 Class B; EN61000-3-2; EN61000-3-3; EN60950-1 |
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| RCM | AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950.1 |
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Source: Grandstream official website and datasheet. Specifications are subject to change by the manufacturer.