Features :

★Professionally designed panel with hotel name and logo printed available  
★Compatibilited with the PBX of NEC,SIEMENS,PHILIPHS,Alcatel，  
Huawei and others  mainstream switches   
★ One-touch button(+10、+5、+3、+0)  
★Flash time adjustble to fit for different exchange and three way talk,   
standard flash time is 600ms  
★Dual tones electronic ringing and volume  High/Low  adjustable   
★Hand-free call volume multilevel adjustable.  
★Large message light, voice message extraction  
★Automatic take-up function  
★Music on hold/Mute  
★storage key-memory funcation  
★Flash/Transfer  
★Auto re-dial  
★In use indicator light   
★Dest and wall mountable  
★Data socket  
★Thunder-proof and Anti_EMI design  
★waterproof and moisture proof