Patent 11146684 - Return call routing system > Summary

US Patent

Patent Application No. US 11146684

Published on Oct 12, 2021

Application No. 16/825330

Field on Mar 20, 2020

Classification

International:

H04M 3/00

H04M 5/00;

H04M 3/523;

H04M 3/42;

Field of Search

379/265.1026514

379/266.102661;

379/309;