NEC Univerge SV9100 Manual page 726

Issue 2.0
Conditions
- When the trunk type is set to 3 (DID) in 22-02-01, the DID Transfer Destination for each DID
feature is not supported. This feature is supported only for DID trunks when assigned as
VRS.
Feature Cross Reference
Direct Inward Dialing (DID)

SV9100 Networking Manual 13-131