asterisk users - Mar 2009 - monitoring a channel and redirect to conf

I am monitoring a channel... I then redirect that channel to a conf with 
lq as options.
When playing back the gsm file I have all recording upto the point of 
redirect to
the conference.

How do I CONTINUE to record and not loose anything after redirecting to 
the conference?
After redirecting I have dead air. asterisk 1.4.23.

Thanks,

Jerry