US Patent Issued to Telefonaktiebolaget LM Ericsson on April 7 for "Apparatus and method to mitigate malicious calls in a wireless network" (Texas Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,210, issued on April 7, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).

"Apparatus and method to mitigate malicious calls in a wireless network" was invented by Qiwen Zhang (Plano, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of invention mitigate stealthy DoS attack and the multiple concurrent ghost calls through enhancing the SIP call procedures. In one embodiment, a first SIP invite message is forwarded from a caller party to a callee party to set up a SIP session, and in response to the first SIP invite message, a timer is started and forwarding one or more session progress messages are forwarded to the ca...