Yealink SIP-T2 SERIES Administrator's Manual page 407

After Ring Time(0~120s) (only for the no answer forward).
3. Click Confirm to accept the change.
To configure Diversion/History-Info feature via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of Diversion/History-Info.
3. Click Confirm to accept the change.
To configure forward international via web user interface:
1. Click on Features->General Information.
Configuring Basic Features
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