Instruction manual
Security measures
Issue 9 May 2003
5-43
For DEFINITY G2.2 and System 85:
■ You cannot eliminate the dial tone prompt for entry of the authorization or 
barrier code, nor can you eliminate switch dial tone. You can eliminate 
AAR/ARS dial tone.
For DEFINITY G2.2:
■ Use PROC103 WORD1 FIELD15 to suppress WCR dial tone for that trunk 
group.
■ Use PROC312 WORD1 FIELD2 to suppress a specific network’s dial tone 
for all users.
For DEFINITY G2.1 and System 85:
■ Use PROC103 WORD1 FIELD3=2 to set the Network Trunk field to a 
value of 2 to suppress AAR/AAS dial tone for that trunk group.
■ Use PROC285 WORD1 FIELD12 to suppress AAR dial tone for all users.
Disallow trunk-to-trunk transfer
Trunk-to-trunk transfer is a feature that allows an incoming trunk call to be 
transferred to an outgoing trunk call. If set to 
yes, the station can hang up and 
leave the two trunks still connected. If set to 
no, then the trunks are disconnected 
as soon as the station hangs up.
For DEFINITY G1, G3V1, G3V2, and System 75:
■ Use change system-parameters feature to display the Features-Related 
System Parameters screen.
■ Enter n in the Trunk-to-Trunk Transfer field.
For DEFINITY G2 and System 85:
■ Set PROC275 WORD4 FIELD3 to 0 to disable trunk-to-trunk transfer.
For DEFINITY G3V3 and later releases:
■ Use change system-parameters to display the Features-Related System 
Parameters screen. 
■ Enter the following in the Trunk-to-Trunk Transfer field, as 
appropriate:
—Enter a (all) to allow all trunk-to-trunk transfers.
—Enter 
r to restrict all public trunks (CO, WATS, FX, DID, and CPE).
—Enter 
n (none) to restrict all trunks from being transferred except 
DCS and CAS.










