
DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506   Issue 1
April 2000
Managing trunks 
360Inserting and absorbing digits 
12
2. In the Digit Treatment field, type insertion.
This field tells the switch to add digits to the incoming digit string. These 
digits are always added at the beginning of the string.
3. In the Digits field, type 6.
For insertion, this field defines the specific digits to insert. The switch will 
add a “6” to the front of the digit strings delivered wi th  in coming calls. For 
example, if the central office delivers the string “4444,” DEFINITY ECS 
will change it to “64444,” an extension that fits your dial plan.
4. In the Expected Digits field, type 4.
This field tells the switch how many digits the central office sends.
NOTE:
The Expected digits field doesn’t appear on the screen for tie trunk 
groups.
5. Press ENTER to save your changes.
If your service provider sends 7 digits but you only need 5, you ne ed to ab sor b the 
first 2 digits in the digit string. To absorb digits:
1. Type change trunk-group 5 and press ENTER.
The Trunk Group screen appears.
2. In the Digit Treatment field, type absorption.
This field tells the switch to remove digits from th e incoming digit string. 
These digits are always removed from the beginning of the string.
3. In the Digits field, type 2.
                                TRUNK GROUP                                      
Group Number: 5   Group Type: did  CDR Reports: y
Group Name: Incoming calls COR: 85 TN: 1 TAC: 105
Country: 1 Auth Code? n 
TRUNK PARAMETERS                                                                 
Trunk Type: wink-start Incoming Rotary Timeout(sec): 5 
Incoming Dial Type: tone
Trunk Termination: rc   Disconnect Timing(msec): 500
Digit Treatment: insertion   Digits: 6
Expected Digits: 4 Sig Bit Inversion: none
Extended Loop Range? n  Trunk Gain: high  Drop Treatment: silence
 Disconnect Supervision - In? y