I don't know such a module, but you could execute an Application on Hangup.
You could use the function ${CURL(url[,post-data])}
:
exten => h,n,Set(result=${CURL(http://SERVER/cdr.php?\
cdranswer=${CDR(answer)}&exten=${EXTEN}&cidnum=${CALLERID(num)})})
exten => h,n,Noop(${result})
Another Approach is to execute a Script on Hangup:
exten => h,n,System('php -f /opt/scripts/cdr.php \
${CallerID(num)} ${EXTEN} "${CDR(answer)}" ${EPOCH}');
Maybe you could also use ${CDR(billsec)}.