[Asterisk-Dev] app_prepaid_rate.c problem (What does "Sorry You need USERCREDIT variable in your channel" means)

[mawali at news.icns.com]

Hi
I am not sure if it is actuall a valid question for this list, but I  am 
sure someone knows what it means.
                                 
I am trying to use asterisk-prepaid application and am running into this 
part of code in app_prepaid_rate.c

        credit=(char*) malloc(sizeof(char)*10);
        credit=pbx_builtin_getvar_helper(chan,"USERCREDIT");
        if (!credit){
          ast_log(LOG_WARNING,"Sorry You need USERCREDIT variable in your 
channel\n");

And then it quits, any ideas.

Regards