If receive a call on the IP Dialog SipTone II, and the other end hangs up first, the siptone immediately enters into the congestion tone. If I initiate the call from the siptone and the other end hangs up first, same thing -- congestion. The same thing happens if we make calls from the analog phones attached to the Mediatrix 1102. This does not happen on our Snom 200 phones, which have similar entries in the Sip.conf as the the IpDialog. I don't know what it could be considering it is on two completely different phone technologies. Any help would be greatly appreciated. We are running the latest CVS build. Thanks in advance. exten => s,1,Dial(${ARG1},20,tr) exten => s,2,Voicemail(u${MACRO_EXTEN}) exten => s,3,Hangup() exten => s,102,Voicemail2(b${MACRO_EXTEN}) exten => s,103,Hangup() IpDialog SipTone II [600] type=friend secret=blah username=600 context=default canreinvite=no host=dynamic dtmfmode=inband ;Choices are inband, rfc2833, or info defaultip=XXX.XXX.XXX.XXX callerid = "Blah" <600> mailbox=600 ; Mailbox for message waiting indicator restrictcid=no ; To have the callerid restriced -> sent as ANI insecure=yes ; To match a peer based by IP address only and not peer insecure=very Mediatrix 1102 [603] type=friend secret=Blah username=603 context=default host=dynamic canreinvite= no qualify=200 dtmfmode=inband defaultip=XXX.XXX.XXX.XXX callerid="Blah" <603> ;mailbox=603 ;restrictcid=yes ;insecure=yes ;insecure=very [604] type=friend secret=blah username=604 context=default host=dynamic canreinvite=no dtmfmode=rfc2833 ;Choices are inband, rfc2833, or info defaultip=XXX.XXX.XXX.XXX callerid = "SNOM 200" <604> mailbox=604 ;restrictcid=yes ;insecure=yes insecure= JP McInnis, Director of Technology Copiah Lincoln Community College