asterisk -rvvvvvvv
Verbosity is at least 10
VOIP*CLI> dahdi restart
 Destroying channels and reloading DAHDI configuration.
       > Initial softhangup of all DAHDI channels complete.
       > Final softhangup of all DAHDI channels complete.
    -- Unregistered channel -2
  == Parsing '/etc/asterisk/chan_dahdi.conf':   == Found
  == Parsing '/etc/asterisk/users.conf':   == Found
    -- Automatically generated pseudo channel
[Feb 27 18:48:29] WARNING[4332]: chan_dahdi.c:17394 process_dahdi: Ignoring any changes to 'userbase' (on reload) at line 23.
[Feb 27 18:48:29] WARNING[4332]: chan_dahdi.c:17394 process_dahdi: Ignoring any changes to 'vmsecret' (on reload) at line 31.
[Feb 27 18:48:29] WARNING[4332]: chan_dahdi.c:17394 process_dahdi: Ignoring any changes to 'hassip' (on reload) at line 35.
[Feb 27 18:48:29] WARNING[4332]: chan_dahdi.c:17394 process_dahdi: Ignoring any changes to 'hasiax' (on reload) at line 39.
[Feb 27 18:48:29] WARNING[4332]: chan_dahdi.c:17394 process_dahdi: Ignoring any changes to 'hasmanager' (on reload) at line 47.
VOIP*CLI> dahdi show cha
channels  channel
VOIP*CLI> dahdi show channels
   Chan Extension  Context         Language   MOH Interpret        Blocked    State
 pseudo            default                    default                         In Service