TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

TK series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follo

T series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follow

T series features:2U Standard rack-mount chassis; Powerful compatibility and expansibility; Use classical drawbenched metal for chassis, optional dialing-out mode of extension; Automatic Day/Night serviceOptional ways of outgoing;Caller ID transfer follow