Asterisk extensions

Extensions are where you call in Asterisk. It can be

• A user
• A queue
• Voicemail
• Voicemail Administration
• A PSTN connection

and much more. A extension can be defined in text or with numbers. Always define a number, use text as aliases. Some clients (phones) can accept text entries, but all of them accept numbers.

Extensions are defined in extensions.conf. You'll find a description on that page.

• Asterisk standard extensions: Standard extensions for invalid, hangup, timeout

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