DDI numbers can ring to any:
–Extension
–Ring Group
–Operator
–Voicemail

Direct Dial Inwards numbers can ring different destinations in day / night mode and multiple Direct Dial Inwards to extension or group. Alpha tagging (name) allows names to be associated with a Direct Dial Inwards number and Name appears on keyset display with incoming call.

With CLI and DDI display will show who is calling and why the caller is calling and it allows operator to identify Direct Dial Inwards recalls also allowing identification of calls to extension groups and allocation of ‘hot line’ numbers to major preferred callers.