The OBi devices have a unique nine-digit OBi Number assigned to them as well. The OBi devices also have the capability to support phone numbers from Internet telephone services as well as the number from your local telco (or cable operator) via the LINE port (OBi200/OBi202 + OBiLINE). By default, the OBi will ring the telephone connected to the PHONE port when any of these numbers are called. You can also configure the OBi to answer the call with the Auto Attendant by adding the caller's number to the OBiTALK Trusted Callers list. When a Trusted Caller calls the OBi they will be connected to the OBi Attendant. The OBi Attendant will ask callers to either continue the call and ring the PHONE port or make a new call or invoke a call back. If a New Call is chosen, then the caller will be prompted to enter the number of the destination they are trying to reach. This could be a regular phone number or it can be an OBi No.