Follow Me : Calls not answered on the extension,can be forwarded to any other extension or external number.
Extension Phone : Choiceof IP Phone, Soft Phone(with Head Phone)or Analog Phone
No Extension Hardware In Server : No additional hardware needed on the server side for more extension.
Extension Rights Control : Extension Rights like allow call recording,View CDR,Web Login,Chat,SMS,Call Forwarding,Conferece,Email,Fax Can be denfined.