Cellular monitoring sends signals over LTE wireless networks — faster, more secure, and impossible to defeat by cutting a phone line. Landline uses a copper phone line and is increasingly unreliable. Cellular is the recommended modern standard.
Head-to-Head Comparison
| Feature | Cellular LTE | Phone Line |
|---|---|---|
| Can be cut to disable alarm | ✓ No | ✗ Yes |
| Works without internet | ✓ Yes | ✓ Yes |
| Works with VoIP phone | ✓ Yes | ✗ Often no |
| Signal speed | Under 30 seconds | 30-90 seconds |
| Required for app control | ✓ Yes | ✗ No |
| Monthly cost at TMC | From $21.99/mo | From $9.99/mo |
Why Cellular Is More Secure
A burglar who knows alarm systems can cut your phone line outside before breaking in, completely disabling landline communication. Cellular eliminates this vulnerability entirely.
What About Internet / Broadband?
Broadband monitoring uses your home internet — faster than a phone line but vulnerable to outages and power loss. Many TMC plans use dual-path (cellular plus internet) for maximum reliability.
Which Should You Choose?
For most customers, cellular is the clear choice. The additional $12/month over basic phone-line monitoring is offset by significantly better security and smartphone app access on select plans.
Upgrade to Cellular Monitoring
Cellular plans start at $21.99/month. No phone line required — ever.
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