McDewey

Before invoking the call.connect() method, add a CallObserver to the address or terminal that is originating the call; otherwise, the method returns an exception. Note Address and Terminal Relationships The Cisco Unified Communications system architecture includes three fundamental types of endpoints: • Phones • Virtual devices (media termination points and route points) • Gateways Of these endpoints, only phones and media termination points get used by using the Cisco Unified JTAPI implementation. Cisco Unified Communications Manager allows users to configure phones to have one or more lines, dialable numbers, which multiple phones may share simultaneously, or lines can be configured for exclusive use by only one phone at a time. Each line on a phone can terminate two calls simultaneously, one of which must be on hold. This operation acts in a similar way to the operation of the “call waiting” feature on home phones. Figure 2: Phone Diagram, on page 20 shows two configurations: Peter and Mary share one phone line, 5001, while Paul has his own phone line, 5002. Figure 2: Phone Diagram A unique name identifies all types of Cisco Unified Communications Manager endpoints. The phone Media Access Control (MAC) address (such as, “SEP0010EB1014”) identifies it, and the system administrator can assign any name to a media termination point, so long as its name is unique. For each endpoint that a provider controls, the Cisco Unified JTAPI implementation uses the administrator-assigned name to construct a corresponding terminal object. Terminal objects in turn have one or more address objects, each of which corresponds to a line on the endpoint. Figure1-2 “Address and Terminal Relationship” shows a graphical representation of the relationship between addresses and terminals. Cisco Unified JTAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 20 Overview Address and Terminal Relationships