http://tec.myfortinet.com/04_sip_trunks/c_manage_did_mapping/index.html On the FortiVoice web administration page, select Call Routing and Inbound on the left-hand menu. Select the DID Mapping tab to manage DID mapping rules. Select the system_voice rule and click the Edit button to edit the DID mapping rule. In the Number Mapping section, click the New button to add a new DID mapping Hugo en-US