Patent ID: 9191521
Filing Date: 2015-11-17
Classification: H04L,H04M

Abstract:
1. A method, comprising: receiving, by a session initiation protocol (SIP) based network element, a first call request to establish a call between a first calling party device and a called party device; establishing, by the SIP based network element, a first dialog between the SIP based network element and the called party device based on receiving the first call request; establishing, by the SIP based network element, a second dialog between the SIP based network element and the first calling party device based on receiving the first call request; receiving, by the SIP based network element, a second call request to establish a call between a second calling party device and the called party device; establishing, by the SIP based network element, a third dialog between the SIP based network element and the second calling party device based on the second call request; establishing, by the SIP based network element, a fourth dialog between the SIP based network element and the called party device based on the second call request; alerting, by the SIP based network element, the called party device to the second call request; waiting, by the SIP based network element, for a response from the called party device to the second call request; performing a default action if the response is not received within a predetermined period of time; and determining, by the SIP based network element and based on the response, an action, and managing a disposition of the second call request by performing the action if the response is received within the predetermined period of time,