Hi, I am back to this thread because the problem is happening again. I didn't touch any of the conf files so it should be working. Calling the DIDs from an extension works but when calling from pstn it doesn't. It keep ringing for some time and the return a busy signal. No output in the FS console. In the public.xml I have this <extension name="public_did"> <condition field="destination_number" expression="^(3462101)$"/> <condition field="${sip_h_X-DID}" expression="^(3105266066)$"> <action application="transfer" data="1000"/> </condition> </extension> <extension name="public_did01"> <condition field="destination_number" expression="^(3462101)$"/> <condition field="${sip_h_X-DID}" expression="^(011551133015337)$"> <action application="transfer" data="1001"/> </condition> </extension> Any help will be appreciated. thanks Jair