[Asterisk-Dev] Asterisk Variables

[jurczak]

Hello,

 

I have some trouble understanding the difference between AST_LIST_TRAVERSE
and pbx_builtin_setvar or getvar

I have seen that some applications are receiving the variables through
pbx_builtin_getvar and other through AST_LIST_TRAVERSE

What is the difference between those two? I am trying to pass variables
to/from a channel. Should I try changing also the DIAL application? Because
I have seen that the DIAL application if it wants to pass variables to
channels it uses AST_LIST_TRAVERSE (dial application only passes variables
to SIP Channel). 

 

If that's the case, wouldn't it be better to pass the variables without
changing anything in DIAL app?

 

Thank you.

 

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