[Lucky7]

Ok so I am having some issues. This is what my voicecomm file looks like

// If enabled admins who die are allowed to talk with everyone.
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_admovrd_death "1"

// If enabled admins who first join will be allowed to talk.
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_admovrd_firstjoin "1"

// If enabled admins speak with everyone on round start if they are a spectator.
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_admovrd_spectate "1"

// Enable or disable the messages: 0 - disabled, 1 - enabled
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_announce "1"

// Controls whether players will automatically be unmuted when rejoining or if previous mutes are enforced.
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_blockunmuteonreconnect "1"

// Controls hearing after death. 0 - Dead players do not hear alive players. 1 - Dead hear alive.
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_deadhearalive "1"

// Defines the team to mute if startmuted is enabled. In CS:S, 2=Terrorists, 3=CTs
// -
// Default: "2"
// Minimum: "1.000000"
// Maximum: "3.000000"
sm_voicecomm_mutedteam "2"

// Controls the length of time terrorists are muted starting from the beginning of the round.
// -
// Default: "29.0"
// Minimum: "2.500000"
sm_voicecomm_mutetime "29.0"

// Controls whether all talk is turned on between the time between rounds
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_roundendalltalk "0"

// Controls whether spectators are automatically muted. (Admins are exempt).
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_spectatormute "1"

// Controls whether a team starts the round muted.
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_startmuted "1"

// Controls talking when alive if deadtalk is set to -2. 0 - Players talk to both teams when alive, 1 - Players talk to only their teammates when alive
// -
// Default: "0"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_voicecomm_teamtalk "1"


sm_deadtalk -2

When I go to type in sm_deadtalk in console I get unknown command. I had the support people on game servers install it for me but still I can't seem to get anywhere. All I am trying to do is make it so that when dead the people dead can hear everyone. They can't communicate back but can hear them, as well as they can talk among the dead. Can you please help me?