By Phone

24 hours a day, 7 days a week, 365 days a year

United States or Canada call 1-888-853-3503 (toll-free)

• Country
  Toll Free Dial
• China Netcom 00-800-1151-5001
• China Telcom 00-800-1151-5001
• Denmark 00-800-1151-5001
• France 00-800-1151-5001
• Germany 00-800-1151-5001
• India 000-800-100-4018
• Japan IDC 061-800-1151-5001
• Japan KDD 010-800-1151-5001
• Taiwan 00801-14-8899
• United Kingdom BT 00-800-1151-5001
• United Kingdom CW 00-800-1151-5001
• All Other Countries +1-415-352-2168

By Form

Receive a response within 24 hours

Need to request a quote?

By Mail

Comm 2000
151 Eastern Avenue
Bensenville, IL 60106

By Fax

Toll-free from the United States and Canada, dial 1-888-UL33512 or 1-888-853-3512

Toll-free from the countries listed above, dial Country Code +1-888-853-3512

All other Countries, dial +1-630-274-6338