SYSTEM AND METHOD FOR INTEGRATING AN OUTGOING CELLULAR CALL AS AN ENTERPRISE CALL IN AN INTERNET PROTOCOL MULTIMEDIA SYSTEM (IMS) ENVIRONMENT

摘要

In one embodiment, an IMS network node (610) is operable, responsive to receiving a SIP INVITE request (612) from an enterprise user (118) to initiate origination of an outgoing cellular call to a called party (120), for establishing a first call leg (620) to the enterprise user (118) by sending a SIP INVITE message back towards the enterprise user (118). The IMS network node (610) includes functionality for establishing a second call leg (624) to the called party (120). The first and second call legs (620, 624) are patched to establish an end-to-end communications path (626) between the enterprise user (118) and the called party (120), wherein an enterprise address instead of a non-enterprise address of the enterprise user (118) is presented to the called party (120) as a calling line identity with respect to the outgoing cellular call from the enterprise user (118).