this is my sip profile:
freeswitch@internal> sofia status
                     Name       Type                                          Data    State
=================================================================================================
              89.165.7.58      alias                                sipinterface_2    ALIASED
              voicemail_1      alias                                sipinterface_2    ALIASED
              voicemail_2      alias                                sipinterface_2    ALIASED
           sipinterface_2    profile               sip:mod_sofia@192.168.2.73:5070    RUNNING (0)
           sipinterface_5    profile              sip:mod_sofia@192.168.2.73:10037    RUNNING (0)
  sipinterface_5::trunk_3    gateway                   sip:TCAPI_User@192.168.2.10    NOREG
           sipinterface_3    profile               sip:mod_sofia@192.168.2.73:5080    RUNNING (0)
=================================================================================================
3 profiles 3 aliases

Also, in a few weeks ago, i saw that sip crawlers with high sip registration requests can meddle on FS SQLite db reactions belongs to sip interfaces! In that event, i was forced to delete sipinterface_1 identified with SQLite DB and define new interface named sipinterface_5 with port 5060. This paragraph is just one report although everyone knows FS is a great man!