Hi all i am confuse the param and variable in freeswitch, sometimes param is used for gateway, sometime variable is used for users example: <param> <param name="dial-string" value="{presence_id=${dialed_user}@${dialed_domain}}${sofia_contact(${dialed_user}@${dialed_domain})}"/> </param> ============= <variables> <variable name="record_stereo" value="true"/> <variable name="default_gateway" value="$${default_provider}"/> <variable name="default_areacode" value="$${default_areacode}"/> <variable name="transfer_fallback_extension" value="operator"/> <variable name="user_context" value="company-b.org"/> </variables> what is difference between param and variable how to use param and variable is there a list of variable and param Thank you Bạn luôn muốn kết nối với nhiều bạn bè hơn trên blog và trang web cá nhân? Tạo Pingbox mới nhất ngay hôm nay! http://vn.messenger.yahoo.com/pingbox/