Patent ID: 7920520
Filing Date: 2011-04-05
Classification: H04L,H04W

Abstract:
1. A method of assigning a cellular identity to a session initiation protocol (SIP) device, comprising: determining whether the device is one of a SIP-only device operating with a SIP protocol and lacking a cellular identity or a hybrid device; authenticating the SIP-only device based on determining that the device is a SIP-only device and that the SIP-only device corresponds to a SIP user account of a SIP provider associated with the SIP-only device; and assigning a cellular identity to the SIP-only device based on the authenticating, wherein the assigning further comprises selecting one of a defined number of cellular identities obtained from a cellular operator by the SIP provider associated with the SIP-only device; wherein the assigning is performed dynamically upon attempting to originate a call to a cellular network by the SIP-only device.