The Intrado VoIP 911 for Enterprise Service provides local routing and emergency-service response for Intrado customers. Cisco Emergency Responder works in conjunction with Intrado to provide emergency services to phones that are located on the corporate network (on premises) and phones that are located away from the corporate network (off premises). Cisco Emergency Responder provides an interface that allows you to enter and synchronize location information directly with Intrado's database. Cisco Emergency Responder provides location information for emergency calls for both on-premises phones and Cisco Virtual Office teleworker phones and works with Intrado, Cisco Unified Communications Manager, and Cisco Unified Border Element to complete emergency calls.