[Serusers] Multiple INVITE's in acc table when putting caller on hold

Does anyone have a solution for eliminating multiple INVITE's in the accounting table (acc) as a result of the caller putting someone on hold?

Here's my accounting section:

... modparam("acc", "log_level", 1) modparam("acc", "log_flag", 1) modparam("acc", "failed_transactions", 1) modparam("acc", "report_ack", 0) ...

route[1] {

# ----------------------------------------------------------------- # Default Message Handler # -----------------------------------------------------------------

t_on_reply("1");

if (method=="INVITE" || method=="ACK" || method=="BYE" || method=="CANCEL") { setflag(1); };

if (!t_relay()) {

if (method=="INVITE" || method=="ACK") { end_media_session(); };

sl_reply_error(); }; }