Replace Function in Asterisk

Asterisk Asterisk Support
1

Hi,
I would like to know how to use replace function in asterisk.

Example:-

exten =>_XXXX.,1,(SIP/${EXTEN}@GW1)
exten =>_XXXX.,n,Hangup

I want to replace the GW1 from any other value using replace function in asterisk. i m using version 1.8.18.0 of asterisk.
I m using the replace function like this.
exten =>_XXXX.,1,Set(var=${Replace(SIP/${EXTEN}@GW1,GW1,GW2){)
exten =>_XXXX.,n,(var)
exten =>_XXXX.,n,Hangup

What i get is that var="" empty
why so i m not able to use replace function.Is it available in the version of the asterisk that are using.

2

This function is relatively new, but it should be in that version.

All the built-in functions have all upper case names.

You have a { where there should be a }.

Some functions like that take a variable name, rather than an expression, but I’m not sure if that is true of REPLACE.

I’ve never seen (var) used before. That’s either a new feature, or wrong.

3

Sorry that } extra i added here by mistake.

i m replacing the content and then assigning it to a variable var . i have used many other function and use the same set function to initialize it to the variable. but i m facing problem in replace function itself.

If it is not present then in which version can i find the same.

Since when i make menuselect all function provided by asterisk is presented there but the replace function is missing.