#!/usr/bin/php -q
<?php

ob_implicit_flush(true);
set_time_limit(0);
$to = $argv1;

$err=fopen("php://stderr","w");
$in = fopen("php://stdin","r");
while (!feof($in)) {
$temp = str_replace("\n","",fgets($in,4096));
$s = split(":",$temp);
$agi[str_replace("agi_","",$s0)] = trim($s1);
if $temp == "") {
break;
}
}
$cf = fopen("/var/spool/asterisk/outgoing/cb" . $agi"callerid" . $to,"w+");
fputs($cf,"Channel: LOCAL/cb".$agi"callerid".$to."\n");
fputs($cf,"Context: default\n");
fputs($cf,"Extension: ".$to."\n");
fputs($cf,"CallerID: CB ".$agi"callerid"."<".$agi"callerid"."> \n");
fputs($cf,"MaxRetries: 100\n");
fputs($cf,"RetryTime: 30\n");
fclose($cf);
fclose($in);
fclose($err);
?>

exten => s-BUSY,1,ChanIsAvail(SIP/${MACRO_EXTEN}|s)
exten => s-BUSY,2,GotoIf($"${AVAILSTATUS}"<="1"?s-NOANSWER,1)
exten => s-BUSY,3,Read(digit|callback|1)
exten => s-BUSY,4,Gotoif($ "${digit}" = "5"?callback,1:5)
exten => s-BUSY,5,Voicemail(${MACRO_EXTEN},b)
exten => s-BUSY,6,Hangup

exten => callback,1,AGI(callback|${MACRO_EXTEN})
exten => callback,2,Hangup

;in cbXXXXXX first three digits are FROM exten and last ones are TO exten
;this exten is used by CALL FILE, logic for this is to make sure extension we are calling is IDLE or NOT_INUSE state.

exten => _cbXXXXXX,1,Set(FROM=${EXTEN:2:3})
exten => _cbXXXXXX,2,Set(TO=${EXTEN:5:3})
exten => _cbXXXXXX,3,ChanIsAvail(SIP/${TO}|s)
exten => _cbXXXXXX,4,GotoIf($"${AVAILSTATUS}" <= "1"?5:7)
exten => _cbXXXXXX,5,Set(CALLERID(all)="CB ${TO} <${TO}>")
exten => _cbXXXXXX,6,Dial(SIP/${FROM}|10)
exten => _cbXXXXXX,7,Hangup