I have a samsung 7200. running ver 4.98. SIP trunks a mgi16 and a oas card. the system is equipped with a 8sli3 card. The problem is, we are trying to connect a alarm panel to the sli port, the panel will dial out with no issue however it appears that the called number can not hear any of the tones from the panel. Will the Samsung 8sli3 support a modem? Fax machine works fine on the sli card.