[asterisk-dev] Unused channel tech ast_kill_tech ?

[Jean Aunis]

Hello,

Digging through Asterisk's code, I stumbled upon a strange channel
technology called "ast_kill_tech" (take a look at channel.c /
channel.h). There is a note stating it is used by Zombie channels, but
actually it does not seem to be used at all, the technology is not even
registered.

Am I missing something obvious, or could this piece of code be safely
removed ?

Regards
--
Jean AUNIS

Ingénieur R&D
R&D engineer

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[Richard Mudgett]

Post by Jean Aunis
Hello,
Digging through Asterisk's code, I stumbled upon a strange channel
technology called "ast_kill_tech" (take a look at channel.c / channel.h).
There is a note stating it is used by Zombie channels, but actually it does
not seem to be used at all, the technology is not even registered.
Am I missing something obvious, or could this piece of code be safely
removed ?

It is no longer needed. It was used in v11 for the DTMF attended transfer
when some code was
conditionaled in but is no longer needed since then. There is a big
comment block in the v11
main/features.c file describing what it used to fix. Since v12 that issue
no longer exists.

Richard