Oct 18 13:22:26 NOTICE[20332]: app_dial.c:764 dial_exec: Unable to create channel of type 'SIP'
  == Everyone is busy/congested at this time
    -- Executing VoiceMail("SIP/7003-6e17", "u7104@default") in new stack
    -- Playing 'vm-theperson' (language 'en')
    -- Playing 'digits/7' (language 'en')
    -- Playing 'digits/1' (language 'en')
    -- Playing 'digits/0' (language 'en')
    -- Playing 'digits/4' (language 'en')
    -- Playing 'vm-isunavail' (language 'en')