battery-reversal       Enable FXS battery-reversal generation
  bearer-cap             Specify the bear capability
  busyout                Configure busyout trigger event & procedure
  caller-id              Configure port caller id parameters
  comfort-noise          Use fill-silence option
  compand-type           The companding type for this voice port
  connection             Specify Trunking Parameters
  cptone                 Configure voice call progress tone locale
  default                Set a command to its defaults
  description            Description of what this port is connected to
  disc_pi_off            close voice path when disconnect with PI received
  disconnect-ack         FXS sending disconnect acknowledge
  echo-cancel            Echo-cancellation option
  exit                   Exit from voice-port configuration mode
  impedance              Specifies the terminating impedance of the interface
  input                  Configure input gain for voice
  lpcor                  Voice port lpcor setup
  mlpp                   Enable Multi-Level Preemption
  music-threshold        Threshold for Music on Hold
  mwi                    Enable MWI on this port
  no                     Negate a command or set its defaults
  non-linear             Use non-linear processing during echo cancellation
  output                 Configure output attenuation for voice
  playout-delay          Configure voice playout delay buffer
  pulse-digit-detection  Enable/Disable pulse digit detection
  ren                    Ringer Equivalence Number
  ring                   Ring frequency Parameters
  shutdown               Take voice-port offline
  signal                 Configure signal parameters for FXS/DID VIC
  snmp                   Modify SNMP voice port parameters
  station-id             Configure station ID
  supervisory            Configure supervisory disconnect lcfo
  threshold              Threshold [noise] for voice port
  timeouts               Configure voice timeout parameters
  timing                 Configure voice timing parameters
  translate              Translation rule
  translation-profile    Translation profile
  trunk-group            Configure interface to be in a trunk group
  voice-class            Set voiceport voice class control parameters