Teltek Systems is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Telecommunications Equipment & Systems Service & Repair
• Telecommunications Telephone Equipment & Systems Supplies & Parts
• Telephone Equipment Sales & Service

North American Industry Classification System (NAICS) Categories:

• Radio, Television, And Other Electronics Stores > Telephone & Communication Equipment > Telephones Equipment & Systems
• Communication Equipment Repair And Maintenance > Electronic Equipment Repair, Except Computers > Telecommunications Equipment & Systems Repair
• Communication Equipment Repair And Maintenance > Electronic Equipment Repair, Except Computers > Telephones Equipment & Systems Repair

Standard Industry Classification (SIC) Categories:

• Miscellaneous Retail Stores, Nec > Telephone & Communication Equipment > Telephones Equipment & Systems
• Electrical And Electronic Repair Shops, Nec > Electronic Equipment Repair, Except Computers > Telecommunications Equipment & Systems Repair
• Electrical And Electronic Repair Shops, Nec > Electronic Equipment Repair, Except Computers > Telephones Equipment & Systems Repair