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pbx_builtins: Allow Answer to return immediately.

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The Answer application currently waits for up to 500ms
for media, even if users specify a different timeout.

This adds an option to not wait for media on the channel
by doing a raw answer instead. The default 500ms threshold
is also documented.

ASTERISK-30308 #close

Change-Id: Id59cd340c44b8b8b2384c479e17e5123e917cba4
This commit is contained in:
Naveen Albert
2022-11-11 20:30:27 +00:00
committed by Friendly Automation
parent 5ede4e217a
commit c7df5ee7c1
2 changed files with 22 additions and 0 deletions
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5
doc/CHANGES-staging/answer.txt Normal file
View File

@@ -0,0 +1,5 @@
Subject: pbx_builtins
It is now possible to not wait for media on
a channel when answering it using Answer,
by specifying the i option.

17
main/pbx_builtins.c
View File

@@ -49,11 +49,23 @@
<parameter name="delay"> <parameter name="delay">
<para>Asterisk will wait this number of milliseconds before returning to <para>Asterisk will wait this number of milliseconds before returning to
the dialplan after answering the call.</para> the dialplan after answering the call.</para>
<para>The minimum is 500 ms. To answer immediately without waiting for media,
use the i option.</para>
</parameter>
<parameter name="options">
<optionlist>
<option name="i">
<para>Answer the channel immediately without waiting for media.</para>
</option>
</optionlist>
</parameter> </parameter>
</syntax> </syntax>
<description> <description>
<para>If the call has not been answered, this application will <para>If the call has not been answered, this application will
answer it. Otherwise, it has no effect on the call.</para> answer it. Otherwise, it has no effect on the call.</para>
<para>By default, Asterisk will wait for media for up to 500 ms, or
the user specified delay, whichever is longer. If you do not want
to wait for media at all, use the i option.</para>
</description> </description>
<see-also> <see-also>
<ref type="application">Hangup</ref> <ref type="application">Hangup</ref>
@@ -836,6 +848,11 @@ static int pbx_builtin_answer(struct ast_channel *chan, const char *data)
delay = 0; delay = 0;
} }
if (!ast_strlen_zero(args.answer_cdr) && !strcmp(args.answer_cdr, "i")) {
/*! \todo We will remove the nocdr stuff for 21 entirely, as part of another review. */
return ast_raw_answer(chan);
}
if (!ast_strlen_zero(args.answer_cdr) && !strcasecmp(args.answer_cdr, "nocdr")) { if (!ast_strlen_zero(args.answer_cdr) && !strcasecmp(args.answer_cdr, "nocdr")) {
ast_log(AST_LOG_WARNING, "The nocdr option for the Answer application has been removed and is no longer supported.\n"); ast_log(AST_LOG_WARNING, "The nocdr option for the Answer application has been removed and is no longer supported.\n");
} }