[App_rpt-users] MDC1200 and recording files

Hi all I have a node with usbradio and rpt working perfectly, multiple iaxrpt clients are connected to that node. I set archivedir for audio recording, but I need to identify each of the clients in the recording file name by MDC1200. example: /var/spool/asterisk/monitor/nodename /${MDC1200}_date.wav I configured rpt.conf as follows: [events] TEMPVAR=v|e|$ {RPT_TXKEYED} *971=f|t|TEMPVAR [functions] 97=autopatchup,noct=1,farenddisconnect=1,dialtime=20000 extensions.conf [radio] exten => 1,1, MixMonitor .. # MixMonitor MDCVAR ? [mdcmacro] I1234 = Should I set a MDCVAR for later use with MixMonitor? Any ideas? Thanks!