User guide

Enterprise IP Phone Customizing Your Phone
Block Out
The specific phone numbers can be forbidden to be call out from your IP phone.
1) Choose Phone->Dial Plan->Block Out.
2) Enter the phone number and click Add button to save the changes, or choose the
specific one in the list, click Delete button to delete the record.
3) You can select a record to modify, then click Edit button to submit.
4) You can not dial out the number from your IP phone unless it is removed from the
forbidden list.