[Asterisk-code-review] func_channel: Adds TECH_EXISTS function. (asterisk[master])

[Joshua Colp]

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Joshua Colp has posted comments on this change. ( https://gerrit.asterisk.org/c/asterisk/+/18063 )

Change subject: func_channel: Adds TECH_EXISTS function.
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
> This seems like such a basic core thing I couldn't believe there wasn't already a function for it. […]
In my 20+ years of being involved in the project, I can't think of anyone anywhere ever wanting such a thing. The reason being, presumably, they don't write dynamic dialplan like that. They write the dialplan for the deployment and change it as needed. For example using a global dialplan variable for the SIP technology in use, and then use that in the Dial line, so there's one place to change it. People sometimes do this for their ITSP too.



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Gerrit-Project: asterisk
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