Patent ID: 9185139
Filing Date: 2015-11-10
Classification: H04L,H04M,H04W

Abstract:
1. A method, comprising: receiving, from a user device, a session initiation protocol (SIP) Invite message associated with a call; determining that the call involves location based processing, wherein the location based processing includes routing the call to a final destination based on a location of the user device, wherein the determining that the call involves location based processing comprises: identifying location information associated with the user device based on header information included in the SIP Invite message, wherein the location information includes at least one of a cell identifier (ID) or a sector identifier (ID); accessing a database to identify a location identifier (ID) corresponding to at least one of the cell ID or sector ID; modifying the SIP Invite message to include the identified location ID, wherein the modifying the SIP Invite message comprises: identifying a call type associated with the call based on information in the R-URI header; and identifying a mobile switching center to which the SIP Invite message is to be forwarded based on the call type and the location information.