Patent ID: 9420447
Filing Date: 2016-08-16
CPC Classification: H04L,H04W

Claim Text:
1. A method, comprising: receiving, from User Equipment (UE) device, a Session Initiation Protocol (SIP) request message via a first IP network by a network node; transmitting a SIP response message by the network node via the first IP network, the SIP response message being responsive to the SIP request message and including at least one message body content in the SIP response message's body, the SIP response message further includes a content type indicator for the at least one message body content; and wherein the UE device provides, by one or more processors, a treatment for the at least one message body content based on a value of the content type indicator independent of at least one of an absence of a content disposition indicator, a content disposition indicator without a value, or a content disposition indicator having a value, the treatment, applied by the UE device, comprising one of: (i) performing an Emergency Services (ES) call effectuated via a circuit-switched network; or (ii) performing a registration and an ES call effectuated via an IP network, wherein the registration involves sending a SIP REGISTER message.