Ext. is the abbreviation for extension, for example: 555-1212 ext. 1212. If you do not have an extension, simply leave that box blank.

How do you call an ext number?

Dialing an extension number
After dialing the main number, press and hold * . A comma ( , ) is added to the number you are dialing. After dialing the main number, press and hold# to add a semicolon ( ; ). Enter the extension number after the semicolon , and then tap the call button.

What do you write in Ext?

Write out “extension” with the extension number beside it or simply write “ext.” with the extension number beside it on the same line as the phone number you are listing. It should look like either (555) 555-5555 extension 5 or (555) 555-5555 ext.

Electroconvulsive therapy (ECT) is a medical treatment most commonly used in patients with severe major depression or bipolar disorder that has not responded to other treatments. ECT involves a brief electrical stimulation of the brain while the patient is under anesthesia.