How do I set alerts via SMS in IBKR Mobile or TWS?

In IBKR Mobile and TWS you can define price, trade, and margin alerts with trigger notifications sent to your email.

For information on how to set alerts in the different trading platforms, see the Users' Guide links below:

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How do I configure email trade confirmations?
How do I set an alert on my phone or tablet?
How can I set an alert in my IBKR Lite account?
How can I disable margin cushion notifications in TWS and IBKR Mobile?