| ULC Listed Central Station |
non-ULC Answering Service |
| FACT: ULC mandates the number of operators on duty per shift. |
No requirements. Most have only one, especially in the late evening/early morning. |
| FACT: ULC mandates an uninterrupted power without power equipment. |
No requirements. Could be without power indefinitely, unable to receive alarm signals. |
| FACT: ULC requires two types of communications to communicate with emergency response authorities.
| No requirements. Most use standard telephone lines only. |
| FACT: ULC mandates that the central station be protected from fire and intrusion, including what the building is constructed from. |
No requirements. Many are homes or offices. |
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