1)Capacity: 3lines,8extension
2) Built-in PC Program
System can be programmed by both SLT or PC Software.
3) External Music:
Built-in exernal music port.Allow the user connect any available music for on-hold
4) Optional Switch & backup Power
System support the Switch power 80~240VAC,50~60Hz. And connect external battery for backup 4~8hours when power fails.
5) Optional Door Opener
System support unlimited universal door phone and opener.
6) Optional Caller ID transfer display & Charge System