LG GDK-20W User Manual

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM     
 

 

 

1. ISDN 

Devices 

 

1)  There are many ISDN Devices. ( ex. ISDN Phone, Video-Phone, G4 Fax, PC-Card, etc.) GDK-20W 

supports all ISDN Devices which is compatible with Euro-ISDN (ETSI ISDN Specification) till now on. 

 

2)  ISDN Devices can call another station on the GDK-20W and access ISDN CO Lines. 

 

3)  Current LCD Display on ISDN Device is its own Device Feature, not GDK-20W System’s Feature.   

 

2.      Supplementary Service for ISDN Device   

 

1)        In GDK-20W, ISDN Station can access the following features, 

 

A.  ISDN Sub Addressing 
B. MSN 
C. Intercom 

Call 

D.  CO Line Access 
E.  CO Line Hold.   
F.  CO Line Transfer. 
G. Etc. 

 

2)   ISDN Sub Addressing. 

 

  Sub Addressing can be programmed by Station Base Program(Main Menu2) - ISDN Station 

Attribute(Sub Menu2) - Sub Address(Terminal Menu1), its range is YES/NO(Default: NO). 

 

 

    For using ISDN Station’s Sub Address, there is further program on the ISDN Devices. Please consult your ISDN 

Devices manual for programming ISDN Device’s Sub Address. 

 

    Sub Address is useful to the following Features for decoding the single ISDN Device from ISDN Devices on the 

same S-Interface (bus), 

(1)   Intercom Call to ISDN Station 
(2)   DID Call to ISDN Station 
(3)   DISA Call to ISDN Station 

 

On the other features, Sub Addressing does not effect ISDN Station’s behavior. 

 

3)  ISDN MSN Addressing.   

 

    MSN Addressing can be programmed by Station Base Program (Main Menu2) - ISDN Station Attribute(Sub Menu2) - MSN 
(Terminal Menu3), its range is YES/NO(Default: NO). 

 

    If ISDN station is allowed MSN addressing by admin. program, in any station user who wants to call to ISDN station 

has to dial the station No and MSN address for that ISDN station. 

 

    For using ISDN Station’s MSN Address, there is further program on the ISDN Devices. Please consult your ISDN Devices manual 
for programming ISDN Device’s MSN Address.