In the left management list, click Advanced → CID Restricts, cilck enter the following page.
**Restrict Type: **Select the rules of restrict in dialing out,include:Whitelist and Blacklist. Blacklist:The numbers inputed can't be dialed out through the trunk. Whitelist:Only the numbers inputed can be dialed out through the trunk.
Cilck【Add】button to open the CID Restricts page.
**Phone: **The telephone number(s) that dial out through the trunk or group,fill in one number per line,and also add more numbers one time.
Restrict Type:
Restrict Status:Enable or disable.
**Team: **Set the CID Restrict to team only or whole system.
**Trunk Type: **Select the type of trunk that used in dialing out,include:Trunk and Trunk group.
Trunk groups is for the call can specify multiple trunks, so that the first relay does not dial the case automatically use the next trunk outbound.
**Trunk: **The target of trunk or trunk group.
After completing the data, click the [Save] button to save the data. The page you can see the set.