All,<br>I am trying to get an alarm system which calls a central monitoring center to work via FreeSwitch.  I am using a Linksys SPA-1001 and a SIP trunk (Vitelity).   Even though the call is answered the &quot;modems&quot; never connect, from what I can tell.  I see the call being answered in Freeswtich, but the alarm system reports a &quot;comm error&quot;.   PCMU is being used for the call and it does hang-up with &quot;NORMAL_CLEARING&quot;.<br>
<br>Does anyone have any ideas how to get &quot;modems&quot; to work over VoIP?  Any suggestions would be appreciated.<br><br>Thanks<br>Kubes<br><br>