Description

The Grandstream GRP2634 is an 8-line, carrier-grade desktop VoIP phone designed for enterprise and service-provider deployments. It belongs to the “GRP Series” of professional/ carrier-grade IP phones from Grandstream, built for mass-deployment, zero-touch provisioning/management, and advanced desktop telephony use-cases. 

It provides multiple keys/BLFs for busy operators or receptionists, integrated PoE and Gigabit Ethernet for modern network use, Wi-Fi & Bluetooth for flexibility, and enterprise-grade security features (secure boot, dual firmware images, encrypted storage) for large network integrity. 

In short: if you need a high-end desk phone capable of handling multiple lines/accounts, with advanced connectivity (GigE, WiFi, Bluetooth), and centralized management, the GRP2634 is a strong candidate.

Key Features

Here are the standout features of the GRP2634:

• 8 lines and up to 12 SIP accounts (as described in some official listings) giving flexibility for multi-line environments. 

• Up to 32 Virtual Multi-Purpose Keys (VPKs) and 10 Multi-Purpose Keys (MPKs) for BLF, speed-dial, presence and extension expansion — ideal for receptionists/administrators. Full-duplex speakerphone and HD audio support (wideband codecs) for high clarity communication. 

• Gigabit Ethernet: Dual switched autosensing 10/100/1000 Mbps ports with integrated PoE. 

• Built-in Wi-Fi (dual-band 2.4GHz & 5GHz) and integrated Bluetooth support (e.g., for wireless headsets, syncing contacts/calendars) in supported hardware versions. 

• Noise-shield technology to minimise background noise in busy environments. 

• Swappable faceplate for branding/customisation (useful for service-providers). 

• Support for 5-way audio conferencing built into the phone. 

• Centralised provisioning/management via the Grandstream Device Management System (GDMS), supporting large-scale roll-outs. 

• Enterprise-grade security: secure boot, dual firmware images, encrypted data storage, TLS/SRTP and other security features.

Specifications

Here are more detailed technical specs for the GRP2634:

Lines & Accounts

• Supports 8 lines. 

• Up to 12 SIP accounts (some sources list 12 SIP accounts for the model). 

Display & Interface

• Colour display: 2.8-inch (320 × 240) TFT LCD. 

• Multi-purpose keys: 10 MPKs + 32 VPKs. 

• Soft keys: context-sensitive programmable soft keys (e.g., 4 soft keys) as part of the interface. 

Network & Ports

• Dual switched auto-sensing Gigabit Ethernet ports: 10/100/1000 Mbps. 

• Integrated PoE (IEEE 802.3af) support. 

• WiFi: Integrated dual-band (2.4GHz & 5GHz), some versions mention WiFi 6 (802.11a/b/g/n/ac/ax) for hardware version 5.0 and above. 

• Bluetooth: integrated. 

• RJ-9 headset jack (with EHS support for Plantronics headsets) + USB port for headsets. 

• Audio codecs: Wide-band (G.722, Opus) and other major standards supported. 

• 5-way voice conferencing built in. 

• Support for call features: hold, transfer, forward, call park, pickup, shared‐call‐appearance/bridged line appearance (SCA/BLA), downloadable phonebook (XML/LDAP), up to ~2000 items call log/phonebook. 

Security & Provisioning

• Secure boot, dual firmware images, encrypted configuration storage. 

• Protocol support: SIP (RFC 3261), TLS, SRTP, IPv6, 802.1x etc. 

• Provisioning: HTTP/HTTPS/FTP/TFTP, TR-069, GDMS support. 

Power & Environmental

• Power: via PoE (802.3af) or adapter (12V / 1A) depending region. 

• Max power consumption: ~6.1 W (adapter) or ~7.8 W (PoE) in one spec sheet. 

• Operating temperature: 0°C to 40°C; Storage: -10°C to 60°C. Humidity: 10%-90% non-condensing. 

Physical / Packaging

• Dimensions: ~220 mm × 210 mm × 82 mm (8.66″ × 8.26″ × 3.22″) approx. 

• Unit Weight: ~880 g. 

• Included package: Handset, handset cord, desk stand, network cable, power adapter (in some regions), quick installation guide.