Yes, in most cases you can keep your existing cameras when you add a remote monitoring service. If your cameras support RTSP, ONVIF, or one of the major cloud platforms (Verkada, Eagle Eye Networks, Rhombus, Avigilon, Milestone, Hikvision, Reolink, Axis, and most others), a monitoring center can typically watch them without any hardware replacement.
We wrote a deeper comparison of [managed monitoring vs. DIY video platforms](/blog/managed-monitoring-vs-diy-platforms) that walks through how the integration actually works. This post answers the narrower question every operator asks first: do I have to rip out what I bought last year?
Usually, no.
What makes a camera compatible
A camera is compatible with a remote monitoring service if it can stream live video to the monitoring center over the internet. Practically, that means one of:
- RTSP support. Real-Time Streaming Protocol is the industry standard. If your camera supports RTSP, the monitoring center can pull the feed directly. Most commercial cameras from the last decade support this.
- ONVIF compliance. ONVIF is the open standard for IP camera interoperability. Any ONVIF-compliant camera can be integrated.
- Major cloud platform integration. Verkada, Eagle Eye, Rhombus, Avigilon Cloud, Milestone, Genetec, and several others have direct integrations with most U.S. monitoring centers. The platform brokers the feed; the monitoring center watches it.
- Direct manufacturer API. Some camera makers (Hikvision, Dahua, Reolink, Axis, Hanwha) offer direct API integration, which is even cleaner than RTSP.
If your cameras fall into any of these categories — which the overwhelming majority do — you keep them.
What requires replacement
A small number of camera deployments genuinely can't be monitored remotely:
- Analog-only systems without an IP-to-analog encoder. Pure analog CCTV is becoming rare but still exists on older sites.
- Closed proprietary systems with no external streaming option (a handful of older residential brands).
- Cameras without consistent network connectivity — typically remote rural sites without cellular or hardwired internet. Even these can usually be solved with a [solar-powered cellular camera unit](/services/solar-security-camera-units) deployed in parallel.
- Cameras too low-resolution or poorly positioned for verification. This isn't strictly a replacement issue, but if a camera can't actually capture a recognizable human face or vehicle, the monitoring operator can't verify events on it. Sometimes the fix is repositioning, not replacement.
If you have one of these situations, the right answer is usually to keep most of what you have and supplement it — not replace everything.
What the integration process looks like
1. Camera audit. We list every camera, model, resolution, position, and field of view. This usually takes 30-60 minutes for a typical site. 2. Compatibility check. We confirm which cameras support remote streaming and identify any gaps. 3. Network configuration. Most sites need a small change to firewall or port-forwarding rules to allow the monitoring center to pull feeds. Some integrations are cloud-brokered and don't need any local network change. 4. Test feed. The monitoring center confirms it can pull live video and the resolution is workable. 5. Protocol setup. We define authorization rules, escalation thresholds, and dispatch protocols for your specific site. 6. Go live. Monitoring begins, usually within 3-10 business days of the audit.
The whole process is non-destructive. If you decide not to proceed, nothing about your existing camera system changes.
Why some providers push replacement anyway
A few monitoring providers require you to buy their cameras to use their service. There are two reasons, and only one is honest:
The honest reason: their monitoring software is genuinely tightly integrated with their own camera hardware, and they can offer better AI analytics or response times as a result. This is a defensible business model but worth understanding before you sign.
The less honest reason: they make more margin on hardware than monitoring, so they bundle. This is the typical alarm-company sales motion repackaged. If a provider insists you replace functional cameras without a specific technical reason, that's the sales motion, not a technical requirement.
We don't require camera replacement. If your cameras work and stream, we monitor them.
What to do next
If you have existing cameras and want to know whether they're compatible, the fastest path is to send a list of camera models and a screenshot of your camera management interface. We typically return a compatibility assessment within one business day at no cost.
[Request an audit here](/quote), or read [how managed monitoring layers on top of platforms like Verkada and Eagle Eye](/blog/managed-monitoring-vs-diy-platforms) for the underlying integration logic.