Which of the statements about gcti DNs is correct?

GctiDN must have a name in the following format: 'gcti: :XXX' where XXX is the type of functionality presented by this DN

Gctl DN must have in a Annex tab 'TServer' Section an option service-type with following value:gcti::XXX' where XXX is the type of functionality presented by this DN

Gctl DN must be a VoIP Service DN type only

Gcti DN can be a VoIP Service DN type

Gcti DN can be a Trunk