Ringing set of extension set, when the call into the ring group, all belong to the extension of the ringing according to set up different ways of bell ringing, when a user extension set the ringing time more than the number of seconds after the corresponding processing.
1,ZYCOO Phone System -> Advanced -> Paging and Intercom,click to the New Paging Group.
1, Phone A call 660 extension, and all members of the ring will be connected.The other members can hear and phone A could not hear other members.