User's Manual
GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM     
94
TABLE 6.2.2.3 ISDN PROGRAM (MAIN MENU 4) 
FLEX 
KEY 
SUB MENU  TERMINAL   
MENU 
RANGE DEFAULT  REMARK 
1  TEI Type  -  Auto / Fixed  Auto 
(4 Ports) 
After you changing TEI, 
press RESET button on 
MBU to operate with the 
new TEI type. 
2 Calling Sub-
Address 
-  Yes / No  No  If this field is set to YES, 
then GDK sends the calling 
extension number in calling 
party sub address 
information of setup 
message. 
3 Incoming Zero 
Insertion 
-  Yes / No  No   
4 Outgoing Zero 
Insertion 
-  Yes / No  Yes   
5 Outgoing 
Check Digit 
-  0 – 9  0   
6  My Area Code  -  -  Not Assigned  
7 My Nation 
Code 
- - Not Assigned  
8 International  
Code 
-  4 Digits  Not Assigned  
9  COLP Table  -  Entry No 
(01-10) 
Not Assigned Max : 10 digits 
10  MSN Table  -  Entry No 
(01-24) 
Not Assigned Flex key 1: CO line No.(1-8) 
Flex key 2: Station No (2 or 
3 digits)   
Flex key 3: MSN No. (1-8) 
Flex key 4: Night destination
( Station no(2digit/ 3digit) 
Or Station Group no(61-64))
Flex key 5:Night MSN (1-8) 
Flex key 6: Telephone No. 
(max: 20 digits) 
11 DID Digits 
Conversion 
1.DID Received Digit from 
PX 
2 - 4  3 
    2.DID First Two Digits   
 Conversion 
DID Received 
Digit No 
*** 
0 - 9 
# : Ignore digit 
* : using received digit   
3.DID Second Digit   
 Conversion 
10 Digits 
1234567890 
12 Transfer Code  - 
2 Digits  * # 
1. Hold/ 
 Retrieve 
1.Service 
 Type 
2. 3-party Conf. 
Keypad/ 
Functional 
Keypad 
2.Hold Code  10 digits  Not Assigned  
3.Retrieve Code  10 digits  Not Assigned  
13 Supplemen-
tary Service 
4.3-Party Conf. Code  10 digits  Not Assigned  
14 Loop Back  -  Yes/No  No   










