Source: https://wearabledocs.com/help/alerts/when-alerts-go-out [Help](https://wearabledocs.com/help)›[When your code is scanned](https://wearabledocs.com/help#alerts) # When does a scan send a text or call? A person opening your page alerts; previews, bots and your own browser do not; testing; calls; limits. Your contacts are alerted when **a person** opens your page: someone scans your code, or types your page's address. They are not alerted by software that opens the page without a person behind it. ## What alerts your contacts - **Someone scanning your code** with a phone camera. - **Someone opening your page** from its web address. A first look from a phone alerts your contacts straight away. Nothing waits. ## What does not alert them - **Link previews.** If you send your page's link in a text, email or chat, the app may open it to draw a preview. That does not alert anyone. - **Search engines and automated link checkers**, including the ones some email services use to check links before you click them. - **Your contacts opening the link we texted them.** Reading your page because we alerted them does not alert everyone again. - **You, on your own phone.** Once you have opened your WearableDocs account in a phone's browser, we recognize that browser as yours, and your own visits there do not alert anyone. ## When an alert waits for someone to read the page Some visits alert only once someone taps or scrolls the page: - **A phone coming back to your page later.** A phone that already looked at your page, looking again more than 10 minutes later, alerts your contacts when someone touches the page. A browser reloading an old tab by itself does not. - **Visits that come through networks automated tools use.** A person on one of those networks still alerts your contacts as soon as they tap or scroll. The same phone looking again within 10 minutes counts as one look. ## Testing your own code It is fine to scan your code when your wearable arrives to check it works. If you scan it with a phone where you have opened your account in the same browser, no one is alerted. On any other phone, a test scan alerts your contacts like any real scan, so **let them know before you test**. ## When your contacts are called If you chose **Text and call** for a contact, we call them about five minutes after the text if no one has opened the link in it or replied. Opening the link is how a contact shows us they saw the alert. Contacts you chose to **call** only are called straight away. ## Limits Each contact receives at most **20 texts in any 24 hours**. Past that, we stop texting them until the count drops and email you instead, naming who was not texted. Every scan is still recorded. ## Related - [Who gets alerted when my code is scanned?](https://wearabledocs.com/help/alerts/how-contacts-work) - [YES, STOP, and pending contacts](https://wearabledocs.com/help/alerts/stop-and-yes) - [Who can see my page?](https://wearabledocs.com/help/page/who-can-see) Open in the app [Emergency contacts](https://app.wearabledocs.com/contacts)