Your IMX must be R11
To assign individual Call Forwarding - Don’t Answer timer to each station
1. Use the ADAI command:
a.) Parameter NAT 139 overrides System Data 1, Index 139 of ASYD
b.) Parameter NAT 140 overrides System Data 1, Index 140 of ASYD
c.) Parameter NAT 141 overrides System Data 1, Index 141 of ASYD
d.) Parameter NAT 247 overrides System Data 1, Index 247 of ASYD
2. Timer assigned to called party is valid.