How to Turn Your Old Phone into a Pet Camera

You can use a compatible iPhone, iPad or Android phone as a pet camera with Call Pet. Leave one device at home as the Monitor and use another as the Controller. The full Android app supports both roles, so two Android devices also work together. Basic live monitoring is free, and pairing does not require an account.

This guide covers the devices you need, QR-code pairing, viewing from outside home, and the power and screen settings that keep the home camera available.

When Is an Old Phone a Good Pet Camera?

A spare phone can be useful if you want to check your pet's live picture and sound without buying a dedicated camera. You can move it between your pet's bed, feeding area, or another indoor spot with a suitable power connection.

Check the features you actually need before choosing a setup. An ordinary phone does not add infrared night vision, treat tossing, or weatherproofing. Call Pet also does not currently provide automated bark alerts. For basic live check-ins, see what the free pet camera app includes.

What You Need

Role	Supported setup
Home camera — Monitor	A compatible iPhone or iPad (iOS/iPadOS 15+), or an Android device using the full app or earlier camera-only app
Your viewer — Controller	A compatible iPhone or iPad (iOS/iPadOS 15+), or the full Android app (Android 7.0+)
Network	Internet access on both devices; Wi-Fi or cellular data can work when both networks allow the live connection
Placement and power	A stable position, enough light, and a safe charging connection for longer sessions

An unused iPad can also be the home device. Read the iPad pet camera guide if you want a larger screen facing your pet.

Step-by-Step: Setting Up Your Spare Phone as a Pet Camera

Step 1: Install the App for Each Device

Open the Call Pet download section and choose the version for each device. Apple devices use the App Store. The Android download shows Google Play overseas and the Android APK in Mainland China. The earlier camera-only app is retained for camera-only use.

Step 2: Choose Controller and Monitor

Open Call Pet on your main phone or tablet and choose Controller. On the device staying at home, choose Monitor. If you use the earlier camera-only Android app, it stays on the camera device; use the full app on your viewing device.

Step 3: Pair with a QR Code

The Monitor displays a pairing QR code. Scan that code from the Controller to connect the devices. You do not need a Call Pet account, password, or email signup. Allow the camera and microphone permissions needed for the roles you use.

Step 4: Position the Home Camera

Aim the camera at the area your pet uses most and check the picture from the Controller. Use a stable stand or shelf, leave space for ventilation, and keep the device and charging cable out of reach of chewing or pulling. Check that room lighting is sufficient at the time you plan to watch.

For a supported two-way video call, the home screen also needs to face your pet. See how to video call your dog or cat for the device and Pro requirements.

Step 5: Test Before Leaving Home

Keep Call Pet open in the foreground on the home Monitor, with the device unlocked. Its dark, low-brightness standby display is different from the system lock screen. After pairing, auto-answer lets it connect without someone at home accepting each session.

Switch your Controller to cellular data or another available network and open the paired Monitor. Check the live picture and audio. This tests whether your setup works beyond the home Wi-Fi. If you will use a work network, test there too: some networks block live media connections.

Can I Watch My Pet When I Am Away from Home?

Yes. The devices do not have to stay on the same Wi-Fi. Both need internet access, and both networks must allow a usable live media connection. Wi-Fi or 4G/5G can work; long video sessions can use substantial mobile data.

Call Pet uses encrypted WebRTC media. It prefers a direct device connection and may use a TURN relay for encrypted packets when needed. A restrictive network can still prevent a session. If permitted, try another Wi-Fi network or cellular data when troubleshooting.

For a workday routine, follow the guide to monitoring your dog while at work, including what to prepare before leaving and what to check if the picture will not connect.

Power, Screen, and Lighting Tips

• Keep the Monitor powered for longer sessions. Check the battery and charging connection before leaving. Continuous camera use generates heat; keep the device ventilated. Power alone does not guarantee an uninterrupted connection.
• Keep Call Pet in the foreground. Do not lock the Monitor or switch it to another app. Use Call Pet's low-brightness standby display when appropriate.
• Check the camera angle from the viewer. Include the floor and your pet's usual resting area, rather than only filming the top of the room.
• Test after dark. A phone camera needs enough light. A safely placed room light may help, but the app does not add infrared night vision.

What Happens to the Video?

Call Pet does not provide cloud video recording or storage. Live media uses encrypted WebRTC, protected with DTLS/SRTP; a relay may carry encrypted packets without making that a cloud recording. Control and signaling data use X25519 + AES-256-GCM protection.

If you manually record on the Controller, the file stays locally on that device. Apple version 1.7.0 also supports optional recording and playback stored locally on the Monitor. Check build, device, and plan support before relying on that feature; Recording options depend on the installed version, device and plan. Read how Call Pet works for the privacy and connection details.

Common Questions

Can I Use a Really Old Phone?

Check compatibility rather than age alone. An Apple device must support iOS/iPadOS 15 or later. For Android, check that the full app or earlier camera-only app runs on the device. Test camera, audio, power, and the remote connection before leaving it unattended. A device that cannot run the supported app is not suitable for this setup.

Can I Lock the Phone or Put Call Pet in the Background?

No. Keep the Monitor unlocked with Call Pet in the foreground. Its dark standby display reduces brightness while the app remains open; it does not mean monitoring continues after a system lock or a switch to another app.

Does the Spare Phone Need a SIM Card?

No. It can use Wi-Fi without an active SIM. Cellular data needs an active mobile data connection. Your Controller also needs internet access, and the networks at both ends must allow the live session.

Is Basic Monitoring Free, and What Requires Pro?

Call Pet is free to download and basic live monitoring is free. Two-way video requires Pro on the Controller; Pro users can also manage up to five Monitors. Check the current in-app plan details for your build. The free monitoring guide explains the difference between free basic viewing and premium features.

What If the Connection Drops?

Call Pet supports automatic reconnection, but recovery depends on the devices and networks. Check whether both devices still have power and internet access and whether the Monitor is unlocked with the app in the foreground. Try opening the paired Monitor again after the network recovers. A locked, offline, or unpowered home device may need someone to check it in person.

Can I Monitor More Than One Room?

You need a compatible Monitor device in each area you want to watch. Pro users can manage up to five Monitors and switch between them. Check coverage and power in each room; adding devices does not fix a weak or blocked network.

Try the Setup with Your Spare Device

Start with one compatible home device and your iPhone, iPad or Android Controller. Pair them, test from a different network, and check the room view before leaving. Download the version for your device to try free basic live monitoring.