TELEPHONE SERVICE & EQUIPMENT Narrow search by: Keyword: Results Found: 2 View On Map new search Sort by: A-Z Print Pinnacle Electronic Systems, Inc. 219 North Illinois Street Belleville, IL 62220-4306 Website 618-235-8882 CTS Technology Solutions, Inc. 154 W. Broadway Sparta, IL 62286 (618) 443-3068 ShareTweetShare0 Shares ShareTweetShare0 Shares