> For the complete documentation index, see [llms.txt](https://docs.perigee.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.perigee.software/core-modules/alert-managers/sms.md).

# SMS

Perigee currently supports two different SMS clients right out of the box. It's easy to register them and use them from anywhere within your application.

1. At the start of your Perigee application, register the related alert managers. 
2. Anywhere from the code later on, call **`AlertManager.SMS()`** and supply the 
   * <mark style="color:blue;">**`Name`**</mark> (The name of the account you registered)
   * <mark style="color:blue;">**`ToNumber`**</mark> (Who it is going to, if within the US, start with the digit `1`)
   * <mark style="color:blue;">**`Message Body`**</mark> (The SMS body content)

### Code

```csharp
PerigeeApplication.ApplicationNoInit("SMS",  (c) => {

    //Register once
    AlertManager.RegisterSMS_Vonage("Vonage", "11231234567", "key", "secret");
    AlertManager.RegisterSMS_Twilio("Twilio", "11231234567", "accountkey", "apikey", "apisecret");

    //Alert from anywhere in the application later
    var rsp = AlertManager.SMS("Twilio", "19998887777", "Sending a message via twilio");

});
```


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