Panasonic ICX Manual

Page of 90
ICX-40-200
ICX (International) issued December 1999
41
Section 200 - General Description      
Chapter 3 - System Features      
DIRECT INWARD SYSTEM ACCESS (DISA)
Description:
Any number of CO lines can be assigned to DISA lines which after being accessed, will enable 
the incoming caller to dial any extension within the system. Or, if the proper security code is 
entered, the caller will be able to access outside lines. Remote programming can also be done 
over these lines after entering a password.
Benefits:
  Allows internal personnel to access the system without tying up the attendant or other 
lines coming into the system.
Applications:
  Field sales people, repeat customers, etc.
 
 
DIRECTORY NUMBER
Description:
Directory Number (DN) allows extension numbers to be used on a key basis. The same DN may 
be assigned to multiple keys on the same telephone and to keys on other telephones. There are 
two types of DNs.
  Primary Directory Number(PDN): A telephone’s extension number is assigned to a 
key on the same telephone. Up to three appearances of the PDN may be assigned to 
keys on a key telephone.
  Non-Primary Directory Number (NPDN): A DN is assigned to an FF key on another 
telephone. Up to three NPDN appearances of the same DN may be assigned to keys 
on a telephone.
A telephone may only have one PDN (on up to three keys) but may have multiple NPDNs with up 
to three appearances of any one NPDN.
Benefits:
  Maximum four extension incoming call can be handled.
Applications:
 
 
DISTINCTIVE RINGING
Description:
Distinctive CO line ringing patterns can be set up for each extension, so the user can tell which 
trunk is ringing. If no distinctive ringing is assigned, then the ringing pattern of the CO line will be 
heard.
Also each extension can specify the different ring pattern and frequency from other extensions to 
distinguish which extension is ringing.
Benefits:
  Allows users to recognize the ring of their individual telephones or of the group of 
telephones that are in their group.
Applications:
  Companies with separate departments or large, open bullpen areas