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Grandstream GXP2135 desk phone with colour screen and 32 programmable keys

Grandstream

Grandstream GXP2135 4 SIP 8 line telephone

SKU CH-4BGV-NHFWZ

An 8-line IP phone with four SIP accounts, 32 programmable BLF keys, dual Gigabit ports with PoE, Bluetooth for headsets and mobile sync, HD audio, EHS headset support and four-way conferencing

  • 8 lines and 4 SIP accounts for flexible call handling
  • 32 programmable BLF and speed-dial keys for quick access
  • Built-in Bluetooth pairs headsets and syncs mobile contacts
  • Dual Gigabit ports with PoE simplify network setup
  • HD audio and full-duplex speakerphone deliver clear conversations

Grandstream GXP2135 business IP phone

The Grandstream GXP2135 is a small-business HD IP phone that handles 4 SIP accounts across 8 lines. It suits offices needing multiple concurrent calls, BLF monitoring and Bluetooth headset pairing without a separate adapter. Built-in PoE simplifies cabling by delivering power and data over a single Ethernet run. It is not for buyers who need more than 4 SIP registrations or analogue line support.

Installation with dual Gigabit ports and PoE

Dual auto-sensing Gigabit ports let the phone sit inline between the wall jack and a PC, so only one cable drop is required. PoE powers the unit automatically when the switch supports it, removing the need for a local power brick. The 32 programmable BLF and speed-dial keys are configured through the web interface or XML provisioning. Installers without PoE infrastructure must source a separate power supply, which is not included.

Sustained call quality and conferencing

HD audio on both the handset and full-duplex speakerphone maintains clarity during long calls and 4-way conferences. Bluetooth remains active for headset roaming and mobile contact sync without dropping the active SIP sessions. The switched ports keep network throughput stable for the attached PC even while the phone carries multiple voice streams. No fan or moving parts means silent operation in quiet offices.

Highlights

  • 8 lines and 4 SIP accounts for flexible call handling
  • 32 programmable BLF and speed-dial keys for quick access
  • Built-in Bluetooth pairs headsets and syncs mobile contacts
  • Dual Gigabit ports with PoE simplify network setup
  • HD audio and full-duplex speakerphone deliver clear conversations

Specifications

BrandGrandstream

Questions about this item

How can I verify the Grandstream GXP2135 is working correctly after setup?

Register the four SIP accounts, confirm all eight lines show active status, test HD audio on both handset and speakerphone, and make a four-way conference call to prove full duplex operation.

What comes with the Grandstream GXP2135 and what must I purchase separately?

The phone includes dual Gigabit ports with built-in PoE, Bluetooth for headset and mobile sync, and 32 programmable BLF and speed-dial keys. EHS-compatible Plantronics headsets are sold separately.

Which version of the Grandstream GXP2135 should I choose for my small business?

The single GXP2135 model provides 4 SIP accounts, 8 lines, 32 programmable keys, Bluetooth, PoE and four-way conferencing — all features listed for this product.

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