Grandstream IP Phone (GXP2135) – A high-functionality professional IP phone designed to enhance productivity in business and office environments. This model supports 8 lines and 4 SIP accounts. The GXP2135 significantly simplifies call management with 32 digital programmable BLF (Busy Lamp Field) keys. Dual Gigabit ports, PoE support, and integrated Bluetooth ensure seamless connectivity to networks and other devices. With its 2.8-inch color LCD display, HD audio quality, and multi-party conferencing capabilities, this phone is an ideal and reliable solution for offices with intensive workflows.