Yealink SIP-T4X Administration Manual page 109

Administrator's Guide for SIP-T4X IP Phones
2. In the Forward block, mark the desired radio box in the Mode field.
a) If you mark the Phone radio box:
1) Mark the desired radio box in the Always Forward/Busy Forward/No Answer
Forward field.
2) Enter the destination number you want to forward in the Target field.
3) (Optional.) Enter the on code and off code in the On Code and Off Code
fields.
4) Select the ring time to wait before forwarding from the pull-down list of After
Ring Time (0~120s) (only for the no answer forward).
b) If you mark the Custom radio box:
1) Select the desired account from the pull-down list of Account.
2) Mark the desired radio box in the Always Forward/Busy Forward/No Answer
Forward field.
2) Enter the destination number you want to forward in the Target field.
3) (Optional.) Enter the on code and off code in the On Code and Off Code
fields.
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