Alliedassault - SH Server admins please help! Voice comands wont work. Why?

Hello folks. Not sure why its doing it but my Spearhead sever wont allow anyone to use voice comands. Ive looked at the cfg a hundred times and cant see what would cause them not to work.

Ive posted a copy of my cfg below. Please tell me if im missing something here.

[quote:20154]
// Server Name
// Name that will appear on the server browser
sv_hostname "AK (American Knights) <=SPEARHEAD=> By: Xgameservers.com"

SETA g_spectate_allow_full_chat "1"
SETA rconpassword xxxxxxxxxx
SV_runspeed 250

// Game Type
// 1 Free for All
// 2 Team Based
// 3 Round Based
// 4 Objective
// 5 Tug Of War
set g_gametype 2

// Health Drop
// When enabled players will drop a health pack when killed
set g_healthdrop 1

// Realism
// Toggles reaslistic mode
set g_realismmode 0

// Fast Run Speed
// When checked, the speed at which players can run through levels is increased.
// Leaving it unchecked defaults to Medal of Honor Allied Assault's original run speed
set sv_dmspeedmult 1.000000

// Team Damage
// Toggles friendly fire
set g_teamdamage 1

// Heal Rate
// Determines how fast players heal when they use a health pickup
set g_healrate 10

// Max Players
set sv_maxclients 12

// Time Limit
// This sets the elapsed time at which the game ends, the winner being the player with the highest score at that time.
timelimit 15

// Frag Limit
// The score at which the player or team will win the current map.
fraglimit 0

// Map Rotation Time
// This sets the maximum amount of time in minutes players will spend in a particular map.
maprotationtime 30

// Team Spawn Delay
// This sets a delay in seconds between spawns. This is useful if you would like the
// player spawned in batches, rather than one at a time
set sv_team_spawn_interval 10

// Round Reset Time
// This sets how long each round will take, in minutes. This can be smaller than the map rotation time, but not larger.
roundlimit 0

// Inactive Spectate
// This sets the time in seconds after which an inactive player becomes a spectator. To save server bandwidth, 60 seconds is default.
set g_inactivespectate 60

// Inactive Kick
// This sets the time in seconds after which an inactive player is kicked out of the game. 900 (15 minutes) seconds is default.
set g_inactivekick 600

// Use Gamespy
// To use GameSpy gaming service for internet-based multiplayer games.
// If this is 0, players will not be able to see your server via the in-game browser nor gamespy arcade.
set sv_gamespy 1

// Pure
// Verifies that the files on the client are the same as those on the server.
set sv_pure 0

// Allow Vote
// Enables players to call a vote.
set g_allowvote 0

// Flood Protect
// Limits amount of text a player can type
set sv_floodprotect 1

// Forces players to only be able to spectate behind their own team.
set g_forceteamspectate 1

// dmflags -- flags that can be set in the dmflags variable.
// DF_NO_HEALTH (1 << 0)
// DF_NO_POWERUPS (1 << 1)
// DF_WEAPONS_STAY (1 << 2)
// DF_NO_FALLING (1 << 3)
// DF_INSTANT_ITEMS (1 << 4)
// DF_SAME_LEVEL (1 << 5)
// DF_NO_ARMOR (1 << 11)
// DF_INFINITE_AMMO (1 << 14)
// DF_NO_FOOTSTEPS (1 << 17)
// DF_ALLOW_LEAN (1 << 18)
// DF_OLD_SNIPERRIFLE (1 << 19)
// DF_GERMAN_SHOTGUN (1 << 20)
set dmflags 1835020

// Invulnerable Time
// Amount of time (in seconds) a player is invulnerable for after spawning (default=3 seconds)
set sv_invulnerabletime 5

// Team Kill Warning
// Amount of team kills before the player is warned
set g_teamkillwarn 2

// Team Kill Kick
// Amount of team kills before the player is kicked off the server.
set g_teamkillkick 4

// Team Switch Delay
// Frequency at which you can switch teams
set g_teamswitchdelay 15

// Allow Join Time
set g_allowjointime 30

// Private Clients
// Clients that require a password to join
set sv_privateclients 4

// Password
// Allows you to set a password for the server
set sv_privatepassword "nunofyobeezneece"

// Keywords
// Keywords which allow browsers to filter servers.
set sv_keywords ""

// Net Port
set net_port 12203

// Minimum Ping to allow clients to join with. 0 means anyone
set sv_minping 0

// Maximum Ping to allow clients to join with. 0 means anyone
set sv_maxping 0

// Maximum Rate
set sv_maxrate 7000

// Map
// Starting map on the rotation.
map "dm/MP_Bahnhof_DM"

// Map Rotation List
sv_maplist "dm/MP_Bahnhof_DM dm/MP_Verschneit_DM dm/MP_Brest_DM dm/MP_Unterseite_DM dm/MP_Stadt_DM dm/MP_Gewitter_DM dm/MP_Holland_DM dm/MP_Bazaar_DM "
[/quote:20154]

Any help here will be greatly appretiated :)

Take care