Product Definition
The Grandstream GXP2135 is a high-end enterprise IP desktop phone designed for users with high call volumes, offering enhanced productivity and advanced functionality for professional deployments.
Key Uses
- Call-intensive environments like contact centers and busy workstations.
- Secure and rapid centralized deployment scenarios.
- Users requiring seamless Bluetooth headset or phonebook integration.
Usage Warnings
- A reliable Gigabit network is essential to fully leverage performance capabilities.
- Avoid power disruptions during firmware or settings updates to prevent data corruption.
Technical Specifications
| Specification | Details |
|---|---|
| Lines Supported | 8 lines, 4 SIP accounts |
| Soft Keys | 4 XML programmable context-sensitive soft keys |
| BLF/Speed-dial Keys | 32 digitally programmable keys |
| Networking & Power | Dual auto-sensing Gigabit Ethernet ports, built-in PoE |
| Display | 2.8″ TFT color LCD (320×240) |
| Bluetooth | Built-in for sync with mobile devices and headsets |
| Audio Quality | Full HD audio, full-duplex speakerphone |
| Conferencing | 4-way audio conferencing |
| Headset Compatibility | Supports EHS Plantronics headsets |
| Provisioning | Automated via TR-069, encrypted XML, UCM integration |
| Security | TLS and SRTP encryption |




























