Skip to end of metadata
Go to start of metadata

Parameter strings can include variables. Variable names are arbitrary strings. They are stored in the respective channel structure.

To set a variable to a particular value, do:

You can substitute the value of a variable everywhere using ${variablename}.

Here is a simple example.

In the second line of this example, Asterisk replaces the ${COUNT} text with the value of the COUNT variable, so that it ends up calling SayNumber(3).

For another example, to stringwise append $varname2 to $varname3 and store result in $varname1, do:

There are two reference modes - reference by value and reference by name. To refer to a variable with its name (as an argument to a function that requires a variable), just write the name. To refer to the variable's value, enclose it inside ${}. For example, Set takes as the first argument (before the =) a variable name, so:

The above dialplan stores to the variable "varname1" the value "varname2" and to variable "varname2" the value "value".

In fact, everything contained ${here} is just replaced with the value of the variable "here".

  • No labels