• SIP Accounts & Lines: Supports 2 SIP accounts and 2 line appearances.
• Power: Features integrated 802.3af PoE (Class 1) to power the device and provide a network connection over a single cable.
• Display: A 2.21-inch (132 x 48) backlit graphical LCD screen.
• Connectivity: Dual switched 10/100 Mbps Ethernet ports.
• Audio Quality: Includes a full-duplex speakerphone with HD audio and Noise Shield technology to minimize background noise.

• Enhanced Conferencing: Supports local 5-way audio conferencing, allowing for more participants than traditional entry-level models.
• Headset Support: Includes an RJ9 headset jack with Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets.
• Enterprise Security: Carrier-grade protection including secure boot, dual firmware images, and encrypted data storage.
• Cloud Management: Fully compatible with the Grandstream Device Management System (GDMS) for streamlined provisioning and monitoring.

• SIP Accounts & Lines: Supports 2 SIP accounts and 2 line appearances.
• Display: Features a 2.21-inch (132 x 48) backlit graphical LCD screen.
• Connectivity: Equipped with dual 10/100 Mbps Ethernet ports.
• Audio Quality: Includes a full-duplex speakerphone with HD audio and Noise Shield technology to filter out background noise.

• Advanced Conferencing: Supports local 5-way audio conferencing, a major upgrade over the 3-way conferencing found on basic GXP models.
• Headset Support: Features an RJ9 jack with Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets.
• Security: Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage.
• Cloud Management: Fully supported by the Grandstream Device Management System (GDMS) for centralized provisioning and monitoring.

• SIP Accounts & Lines: Supports up to 16 SIP accounts and 10 dual-color line keys.
• Display: Features a large 4.3-inch (480 x 272) TFT color LCD, providing ample space for managing multiple calls.
• Wireless Connectivity: Includes integrated dual-band Wi-Fi (802.11 a/b/g/n/ac) and Bluetooth for syncing with mobile devices and using wireless headsets.
• Wired Networking: Dual switched Gigabit (10/100/1000 Mbps) ports for high-speed pass-through to a PC.
• Power: Supports integrated PoE (802.3af); a universal power adapter is also typically included in the box.

• Massive Key Capacity: Features 40 built-in digital BLF/speed-dial keys (MPKs) across multiple screen pages.
• Expansion Ready: Compatible with up to four GBX20 Extension Modules, allowing for a total of 200 programmable keys—ideal for receptionists or dispatchers.
• HD Audio: Equipped with a handset and speakerphone that support wideband codecs like Opus and G.722, plus Noise Shield technology to reduce background noise.
• Enterprise Security: Includes carrier-grade protection with secure boot, dual firmware images, and encrypted data storage.
• Management: Seamlessly managed via the Grandstream Device Management System (GDMS) for cloud-based provisioning.

• SIP Accounts & Lines: Supports 2 SIP accounts and 4 multi-purpose line keys.
• Display: Features a 2.4-inch (320 x 240) TFT color LCD for clear navigation.
• Power: Includes integrated PoE (802.3af) support. Note that some retailers ship this model without a separate power adapter because it is intended for PoE networks.
• Networking: Equipped with dual switched 10/100 Mbps Ethernet ports.

• Programmable Keys: Offers up to 16 digital, on-screen Multi-Purpose Keys (VPKs) for speed dial or BLF (Busy Lamp Field) status.
• HD Audio: Delivers high-definition sound on both the handset and full-duplex speakerphone, supporting advanced codecs like Opus and G.722.
• Security: Enterprise-level protection with secure boot, dual firmware images, and encrypted data storage.
• Cloud Management: Fully supported by the Grandstream Device Management System (GDMS) for zero-touch provisioning and remote management.
• Accessibility: Includes an RJ9 headset jack with Electronic Hook Switch (EHS) support for Plantronics (Poly) headsets.

• SIP Accounts & Lines: Supports 1 SIP account and up to 2 call appearances.
• Power: Features integrated PoE (802.3af) to power the device over the network cable, while also shipping with a universal power supply for non-PoE environments.
• Display: Equipped with a 132 x 48 pixel (2.95-inch) graphical LCD screen.
• Connectivity: Includes dual switched 10/100 Mbps Ethernet ports for high-speed network pass-through.

• Conferencing: Supports 3-way audio conferencing for easy team collaboration.
• Programmable Keys: Includes 3 XML programmable soft keys and 2 line keys with dual-color LEDs.
• Headset Support: Features a dedicated RJ9 headset jack and supports Electronic Hook Switch (EHS) for Plantronics (Poly) wireless headsets.
• Audio Quality: Includes a full-duplex speakerphone with HD audio on both the handset and speakerphone.
• Capacity: Downloadable phonebook for up to 500 contacts and a call history of up to 200 records.

• SIP Accounts & Lines: Supports 4 SIP accounts and up to 8 line keys.
• Display: Features a 2.8-inch (320 x 240) TFT color LCD, offering much better visibility than entry-level models.
• Connectivity: Equipped with dual-switched Gigabit (10/100/1000 Mbps) Ethernet ports for high-speed network pass-through.
• Audio: Delivers full HD audio on both the handset and the full-duplex speakerphone.

Key Features

• • Integrated Bluetooth: Built-in for syncing with mobile devices (contacts/calendars) and using Bluetooth headsets.
  • Programmable BLF Keys: Includes 32 digital, on-screen Busy Lamp Field (BLF) and speed-dial keys for quick contact access.
  • Conferencing: Supports up to 4-way audio conferencing.
  • Integrated PoE: Unlike the GXP1610, this model has built-in Power over Ethernet (PoE), though it typically still ships with a universal power supply.
  • Headset Support: Includes an RJ9 jack and supports Electronic Hook Switch (EHS) for Plantronics (Poly) wireless headsets. 

• SIP Accounts: Supports 2 SIP accounts and 2 lines.
• Network: One 10/100 Mbps Ethernet port.
• Power: Powered via PoE (Power over Ethernet).
• Audio: HD speaker on the handset with advanced acoustic echo cancellation and Opus codec support.

• USB-C Charging: Includes a built-in USB Type-C port so guests can charge their smartphones or tablets directly from the phone.
• Programmable Keys: Features 6 programmable keys—typically used for “Front Desk,” “Housekeeping,” or “Room Service”—and 10 speed-dial keys.
• Customization: Like other GHP models, the faceplate is swappable, allowing you to print hotel logos and dialing instructions.
• Reliability: Includes a jitter-resilience algorithm that maintains clear audio even with up to 30% packet loss.

• SIP Accounts & Lines: Supports 2 SIP accounts and 2 lines.
• Connectivity: Equipped with one 10/100 Mbps Ethernet port with integrated PoE (Class 2).
• Audio Quality: Features an HD speaker on the handset and supports the full-band Opus voice codec.
• Resilience: Includes an advanced jitter-resilience algorithm that can tolerate up to 30% packet loss without affecting voice quality.

• Programmable Keys: Includes 6 programmable keys and 10 speed-dial keys for easy guest access to hotel services.
• Customization: Features a swappable faceplate to allow hotels to easily display their logo and specific guest instructions.
• Device Charging: Includes a USB Type-C port for guests to charge external devices.
• Mounting Options: Designed for both desktop and wall-mount installation.
• Accessibility: Hearing Aid Compatible (HAC) for improved guest accessibility. 

Grandstream GHP611 is a compact, streamlined IP phone specifically designed for hotels, hospitals, and dormitories. Part of the GHP series, it features a slim design where the keypad is integrated directly into the handset, making it ideal for wall mounting or small bedside tables.

• SIP Accounts: Supports 2 SIP accounts and 2 lines.
• Connectivity: Equipped with one 10/100 Mbps Ethernet port.
• Power: Powered via integrated PoE (Power over Ethernet). Note that the GHP611 does not include a power adapter; the GHP611W model adds dual-band Wi-Fi and typically includes a power supply.
• Audio: Features an HD speaker on the handset and supports wideband codecs like Opus.

• Customizable Faceplate: The front labels can be swapped to include hotel logos, dialing instructions, or emergency numbers.
• Programmable Keys: Includes 3 programmable keys (often used for front desk, housekeeping, or room service) and 10 speed-dial keys.
• Compact Footprint: Designed to fit in tight spaces; it is significantly smaller than the GRP or GXP desk phones discussed earlier.
• HAC Compatible: Hearing Aid Compatible for accessibility compliance.
• Cloud Management: Can be managed entirely through the Grandstream Device Management System (GDMS), allowing a hotel to configure hundreds of rooms simultaneously.