Hi, day after I undertand a littlee more all these xml hell files (not friendly to read ;)), but to be a PERl developer since 1999 understand regex and PERL language make life more easy... However, I don't understand yet the concept of internal exterenal. is it for phone registration AND outbound calls ? for now I try to make an external call from 1000 ext (registered on port 5060) so I added an extension in dialplan/default.xml <extension name="outbound_europe"> <condition field="destination_number" expression="^00?(\d+)$"> <action application="bridge" data="sofia/gateway/myprovider_europe/00$1"/> </condition> </extension> so if call starts with "00" it redirects to my provider that manage outbound calls, is it correct ? I put the myprovider.xml account into sip_profiles/external/myprovider.xml. Thanks for your help Franck