On Call Communications

On Call Communications is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Burglar Alarm Systems
• Burglar Alarm Systems & Monitoring Services
• Electronic Equipment & Supplies
• Radio Communication Equipment & Systems
• Telephones Answering Service

North American Industry Classification System (NAICS) Categories:

• Electrical Apparatus And Equipment, Wiring Supplies, And Related Equipment Merchant Wholesalers > Alarms, Signaling & Security Equipment > Burglar Alarm Systems
• Other Electronic Parts And Equipment Merchant Wholesalers > Electronic Equipment & Supplies
• Radio, Television, And Other Electronics Stores > Audio Equipment > Radio Communication Equipment & Systems
• Telephone Answering Services
• Security Systems Services (Except Locksmiths) > Anti-Theft Alarm Systems Services > Burglar Alarm Systems Monitoring Services

Standard Industry Classification (SIC) Categories:

• Electrical Apparatus & Equipment > Alarms, Signaling & Security Equipment > Burglar Alarm Systems
• Electronic Parts & Equipment > Electronic Equipment & Supplies
• Radio, Television, And Consumer Electronics Stores > Audio Equipment > Radio Communication Equipment & Systems
• Security Systems Services > Anti-Theft Alarm Systems Services > Burglar Alarm Systems Monitoring Services
• Business Services, Nec > Telephone Answering & Messenger Services > Telephone Answering Service