Reverse signaling to establish network calls

Abstract

Reverse signaling to establish network calls. An example method of reverse signaling to establish network calls includes contacting an app server by a first device with a request to call a second device. The example method also includes contacting a push service by the app server, and the push service contacting the second device with the request to call the second device. The example method also includes sending an invite to a call server by the second device, the call server sending the invite to the first device. The example method also includes sending an acknowledgement to the call server from the first device, the call server sending the acknowledgement to the second device to establish the call.

Dependencies are inferred from the claim text.