Call forwarding is a phone service that enables incoming calls to be directed to another phone number, such as a mobile phone number or a landline, or an internal line or a SIP account. A subscriber chooses the forwarding destination. There are different call forwarding options depending on the objective. Call forwarding can have several destinations at the same time (ensuring that they’re answered by the first available agent) or in sequence. This helps to ensure that incoming calls are always answered, even when the primary forwarding destination is busy or unattended. This service can also forward the calls to different destinations based on a schedule (during non-business hours or on weekends).