Grandstream GXP1628

Overview

The Grandstream GXP1628 is a desktop IP phone designed for small and medium offices that need reliable Gigabit Ethernet speeds and Power over Ethernet (PoE) support without extra hardware. It supports two independent SIP accounts, allowing users to manage personal and shared lines efficiently. The phone features a 132 x 48 backlit LCD screen for clear caller information and menu navigation, making it easy to handle calls and access features.

With dual Gigabit ports and integrated PoE, the GXP1628 ensures fast network connectivity and reduces cable clutter by drawing power directly from a PoE switch or injector. Its HD audio on both the handset and speakerphone delivers clear sound quality, suitable for busy office environments where call clarity is essential.

Key features

• Supports two SIP accounts and two line keys for flexible call management between personal and shared lines
• HD audio on handset and speakerphone for clear voice communication during calls
• Dual Gigabit Ethernet ports with integrated PoE simplify network setup and reduce the need for additional power adapters
• Eight dual-color BLF or speed-dial keys provide quick access to colleagues or frequently dialed numbers, improving call handling efficiency
• Electronic hook switch support for Plantronics headsets enables hands-free operation, ideal for multitasking or long calls
• Three XML programmable soft keys allow customization of common tasks like voicemail or call park to fit specific workflow needs
• Local phonebook stores up to 1,000 contacts, and a 200-entry call history helps users keep track of recent calls without extra devices
• Automated provisioning options simplify mass deployment and management across multiple desks
• Supports SRTP and TLS encryption to secure voice and signaling traffic, protecting sensitive conversations

Key specs

• Display: 132 x 48 backlit LCD screen
• SIP accounts: 2 independent accounts
• Ethernet ports: Dual Gigabit Ethernet (10/100/1000 Mbps)
• Power: Integrated Power over Ethernet (PoE)
• Programmable keys: 3 XML soft keys, 8 dual-color BLF/speed-dial keys
• Phonebook capacity: Up to 1,000 contacts
• Call history: 200 records
• Audio: HD audio on handset and speakerphone
• Security: SRTP and TLS encryption support

Connectivity and compatibility

The GXP1628 integrates smoothly with Grandstream UCM series IP PBXs and is compatible with most open-standard SIP platforms, making it a versatile choice for existing office networks. Its dual Gigabit Ethernet ports ensure fast data transfer and network reliability, while PoE support reduces the need for additional power cables, keeping workspaces tidy.

• Compatible with Grandstream UCM IP PBXs and standard SIP platforms
• Dual Gigabit Ethernet ports for high-speed network connections
• PoE support for simplified power and network cabling
• Electronic hook switch support for Plantronics headsets

Ideal uses and environments

This phone is well suited to office environments where users need to manage multiple lines and maintain clear communication, such as reception desks, sales teams, and customer service centers. Its programmable keys and BLF indicators help streamline call handling and improve team collaboration. The GXP1628 fits well in setups that prioritize network speed, security, and ease of deployment.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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