"Compatible with the PBX of Avaya,NEC,SIEMENS,PHILIPHS,Alcatel,Huawei.
10 one-touch memories.
POWER-SAVE function and the message can be save when power off.
Handsfree function.
Volume adjustment.
Ring HI/LOW switch.
Mute function.
Auto-redial.
Flash time:1000ms/600ms/300ms/90ms.
Hold function.
Tone/pulse switchable."