# Syntax of \[\]()?

**URL:** <https://community.asterisk.org/t/syntax-of/69360>\
**Category:** Asterisk Support\
**Created:** [January 11, 2017, 12:23pm UTC](https://community.asterisk.org/t/syntax-of/69360 "2017-01-11T12:23:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![thufir](https://avatars.discourse-cdn.com/v4/letter/t/ee7513/32.png) [@thufir](https://community.asterisk.org/u/thufir)\
**Post date:** [January 11, 2017, 12:23pm UTC](https://community.asterisk.org/t/syntax-of/69360/1 "2017-01-11T12:23:16Z")

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Where or how is it documented that foo will apply bar to foo?

wiki:

```
[general]
transport=udp

[friends_internal](!)
type=friend
host=dynamic
context=from-internal
disallow=all
allow=ulaw

[demo-alice](friends_internal)
secret=verysecretpassword ; put a strong, unique password here instead

[demo-bob](friends_internal)
secret=othersecretpassword ; put a strong, unique password here instead
```

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<div class="post-metadata">

**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\
**Post date:** [January 12, 2017, 8:14am UTC](https://community.asterisk.org/t/syntax-of/69360/2 "2017-01-12T08:14:46Z")

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Google says [https://wiki.asterisk.org/wiki/display/AST/Using+Templates](https://wiki.asterisk.org/wiki/display/AST/Using+Templates)