Hi there, first of all, my name is Uli. I'm reading this list for a while and today im gonna post my first question ;) I'm using a Sangoma A500 with FreeTDM and FreeSWITCH. My setup is running, better say _was_ running, perfectly. I'm not 100% sure, but maybe sunday or monday I updated freeswitch. Since there I have a strange thing. If someone is calling via ISDN to my FreeSWITCH-box there is no ringback tone on the callers phone (i.e. tooot...tooot...tooot...). My phone here is ringing, I can answer the call, after timeout voicemail answers. Here are some parts of my config: Extension, which is matched: <extension name="coming_from_isdn_bureau"> <condition field="destination_number" expression="^(<MYNUMBER>)$"> <action application="set" data="effective_caller_id_number=00${caller_id_number}"/> <action application="set" data="ringback=$${de-ring}"/> <action application="set" data="transfer_ringback=$${de-ring}"/> <action application="transfer" data="225 XML default"/> </condition> </extension> In my first running setup I did not set variable ringback and transfer_ringback. And there was a toot...tooot...toot... Observing that there is no ringback any more I decided to set these variables, but with no (or not the wanted) effect. Application info sais: variable_ringback: [%(1000,4000,425)] variable_transfer_ringback: [%(1000,4000,425)] Calling internal (sip->sip) is no problem. Ringtones are there. Calling from sip-phone to external number via ISDN (Sangoma A500) is also no problem. There I don't set ringback-variable... <extension name="ext_isdn_calls"> <condition field="caller_id_number" expression="^(222|223)$" break="never"> <action application="set" data="effective_caller_id_number=<MSN-A>"/> <anti-action application="set" data="effective_caller_id_number=<MSN-B>"/> </condition> <condition field="destination_number" expression="^(0)(\d+)$"> <action application="info"/> <action application="bridge" data="freetdm/wp1/a/$2"/> </condition> </extension> Maybe someone has an idea, where I can do further debugging or where there could be a misconfiguration... Best regards Uli P.s.: hope you can understand my german english ;)