US Patent Issued to Zoom Communications on Dec. 30 for "Emergency call telephone numbers for extension-only devices" (California, Washington Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,244, issued on Dec. 30, was assigned to Zoom Communications Inc. (San Jose, Calif.).

"Emergency call telephone numbers for extension-only devices" was invented by Walter F. C. Anderson (Santa Cruz, Calif.) and Vi Dinh Chau (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Location determination and telephone number distribution for emergency calls is enabled by a telephony system which maintains multiple pools of telephone numbers. Each pool corresponds to a different region such that the pools of telephone numbers are defined at the region-level rather than at the site-level. The telephony system determines the location of a calling device in...