diff --git a/rehlds/engine/server.h b/rehlds/engine/server.h
index 0c27b94..3a982a8 100644
--- a/rehlds/engine/server.h
+++ b/rehlds/engine/server.h
@@ -715,6 +715,7 @@ void SV_CreateResourceList(void);
 void SV_ClearCaches(void);
 void SV_PropagateCustomizations(void);
 void SV_WriteVoiceCodec(sizebuf_t *pBuf);
+void SV_WriteVoiceCodec_internal(sizebuf_t *pBuf);
 void SV_CreateBaseline(void);
 void SV_BroadcastCommand(char *fmt, ...);
 void SV_BuildReconnect(sizebuf_t *msg);
diff --git a/rehlds/engine/sv_main.cpp b/rehlds/engine/sv_main.cpp
index ff7a094..bae6b38 100644
--- a/rehlds/engine/sv_main.cpp
+++ b/rehlds/engine/sv_main.cpp
@@ -5124,8 +5124,13 @@ void SV_PropagateCustomizations(void)
 	}
 }
 
-/* <a9cdb> ../engine/sv_main.c:6850 */
 void SV_WriteVoiceCodec(sizebuf_t *pBuf)
+{
+	g_RehldsHookchains.m_SV_WriteVoiceCodec.callChain(SV_WriteVoiceCodec_internal, pBuf);
+}
+
+/* <a9cdb> ../engine/sv_main.c:6850 */
+void EXT_FUNC SV_WriteVoiceCodec_internal(sizebuf_t *pBuf)
 {
 	MSG_WriteByte(pBuf, svc_voiceinit);
 	MSG_WriteString(pBuf, "");
diff --git a/rehlds/public/rehlds/rehlds_api.h b/rehlds/public/rehlds/rehlds_api.h
index c9ee881..2857c5b 100644
--- a/rehlds/public/rehlds/rehlds_api.h
+++ b/rehlds/public/rehlds/rehlds_api.h
@@ -35,7 +35,7 @@
 #include "model.h"
 
 #define REHLDS_API_VERSION_MAJOR 2
-#define REHLDS_API_VERSION_MINOR 2
+#define REHLDS_API_VERSION_MINOR 3
 
 //Steam_NotifyClientConnect hook
 typedef IHookChain<qboolean, IGameClient*, const void*, unsigned int> IRehldsHook_Steam_NotifyClientConnect;
@@ -153,6 +153,10 @@ typedef IVoidHookChainRegistry<IGameClient*, bool, const char*> IRehldsHookRegis
 typedef IVoidHookChain<int> IRehldsHook_SV_ActivateServer;
 typedef IVoidHookChainRegistry<int> IRehldsHookRegistry_SV_ActivateServer;
 
+//SV_WriteVoiceCodec hook
+typedef IVoidHookChain<sizebuf_t *> IRehldsHook_SV_WriteVoiceCodec;
+typedef IVoidHookChainRegistry<sizebuf_t *> IRehldsHookRegistry_SV_WriteVoiceCodec;
+
 class IRehldsHookchains {
 public:
 	virtual ~IRehldsHookchains() { }
@@ -186,6 +190,7 @@ public:
 	virtual IRehldsHookRegistry_SV_CheckConsistencyResponse* SV_CheckConsistencyResponse() = 0;
 	virtual IRehldsHookRegistry_SV_DropClient* SV_DropClient() = 0;
 	virtual IRehldsHookRegistry_SV_ActivateServer* SV_ActivateServer() = 0;
+	virtual IRehldsHookRegistry_SV_WriteVoiceCodec* SV_WriteVoiceCodec() = 0;
 };
 
 struct RehldsFuncs_t {
@@ -222,6 +227,12 @@ struct RehldsFuncs_t {
 	cvar_t*(*GetCvarVars)();
 	int (*SV_GetChallenge)(const netadr_t& adr);
 	void (*SV_AddResource)(resourcetype_t type, const char *name, int size, unsigned char flags, int index);
+	int(*MSG_ReadShort)(void);
+	int(*MSG_ReadBuf)(int iSize, void *pbuf);
+	void(*MSG_WriteBuf)(sizebuf_t *sb, int iSize, void *buf);
+	void(*MSG_WriteByte)(sizebuf_t *sb, int c);
+	void(*MSG_WriteShort)(sizebuf_t *sb, int c);
+	void(*MSG_WriteString)(sizebuf_t *sb, const char *s);
 };
 
 class IRehldsApi {
diff --git a/rehlds/public/rehlds/rehlds_interfaces.h b/rehlds/public/rehlds/rehlds_interfaces.h
index efcbd83..ea74dc3 100644
--- a/rehlds/public/rehlds/rehlds_interfaces.h
+++ b/rehlds/public/rehlds/rehlds_interfaces.h
@@ -67,6 +67,9 @@ public:
 	virtual bool IsConnected() = 0;
 	virtual void SetConnected(bool connected) = 0;
 
+	virtual uint32 GetVoiceStreams(int id) = 0;
+	virtual double GetLastVoiceTime() = 0;
+	virtual bool GetLoopback() = 0;
 
 	// this must be the last virtual function in class
 #ifdef REHLDS_SELF
@@ -117,4 +120,6 @@ public:
 	virtual int GetConsistencyNum() = 0;
 	virtual int GetResourcesNum() = 0;
 	virtual int GetDecalNameNum() = 0;
+
+	virtual double GetTime() = 0;
 };
diff --git a/rehlds/rehlds/rehlds_api_impl.cpp b/rehlds/rehlds/rehlds_api_impl.cpp
index 624d8b5..8bb82e7 100644
--- a/rehlds/rehlds/rehlds_api_impl.cpp
+++ b/rehlds/rehlds/rehlds_api_impl.cpp
@@ -73,6 +73,30 @@ void EXT_FUNC MSG_WriteBits_api(uint32 data, int numbits) {
 	MSG_WriteBits(data, numbits);
 }
 
+int EXT_FUNC MSG_ReadShort_api() {
+	return MSG_ReadShort();
+}
+
+int EXT_FUNC MSG_ReadBuf_api(int iSize, void *pbuf) {
+	return MSG_ReadBuf(iSize, pbuf);
+}
+
+void EXT_FUNC MSG_WriteBuf_api(sizebuf_t *sb, int iSize, void *buf) {
+	MSG_WriteBuf(sb, iSize, buf);
+}
+
+void EXT_FUNC MSG_WriteByte_api(sizebuf_t *sb, int c) {
+	MSG_WriteByte(sb, c);
+}
+
+void EXT_FUNC MSG_WriteShort_api(sizebuf_t *sb, int c) {
+	MSG_WriteShort(sb, c);
+}
+
+void EXT_FUNC MSG_WriteString_api(sizebuf_t *sb, const char *s) {
+	MSG_WriteString(sb, s);
+}
+
 void EXT_FUNC MSG_WriteBitVec3Coord_api(const vec3_t fa) {
 	MSG_WriteBitVec3Coord(fa);
 }
@@ -122,7 +146,13 @@ RehldsFuncs_t g_RehldsApiFuncs =
 	&SZ_GetSpace,
 	&GetCvarVars_api,
 	&SV_GetChallenge,
-	&SV_AddResource
+	&SV_AddResource,
+	&MSG_ReadShort_api,
+	&MSG_ReadBuf_api,
+	&MSG_WriteBuf_api,
+	&MSG_WriteByte_api,
+	&MSG_WriteShort_api,
+	&MSG_WriteString_api
 };
 
 sizebuf_t* EXT_FUNC GetNetMessage_api()
@@ -272,6 +302,10 @@ IRehldsHookRegistry_SV_ActivateServer* CRehldsHookchains::SV_ActivateServer() {
 	return &m_SV_ActivateServer;
 }
 
+IRehldsHookRegistry_SV_WriteVoiceCodec* CRehldsHookchains::SV_WriteVoiceCodec() {
+	return &m_SV_WriteVoiceCodec;
+}
+
 int EXT_FUNC CRehldsApi::GetMajorVersion()
 {
 	return REHLDS_API_VERSION_MAJOR;
diff --git a/rehlds/rehlds/rehlds_api_impl.h b/rehlds/rehlds/rehlds_api_impl.h
index 298eed0..1bdc9f0 100644
--- a/rehlds/rehlds/rehlds_api_impl.h
+++ b/rehlds/rehlds/rehlds_api_impl.h
@@ -147,6 +147,10 @@ typedef IVoidHookChainRegistryImpl<IGameClient*, bool, const char*> CRehldsHookR
 typedef IVoidHookChainImpl<int> CRehldsHook_SV_ActivateServer;
 typedef IVoidHookChainRegistryImpl<int> CRehldsHookRegistry_SV_ActivateServer;
 
+//SV_WriteVoiceCodec hook
+typedef IVoidHookChainImpl<sizebuf_t *> CRehldsHook_SV_WriteVoiceCodec;
+typedef IVoidHookChainRegistryImpl<sizebuf_t *> CRehldsHookRegistry_SV_WriteVoiceCodec;
+
 class CRehldsHookchains : public IRehldsHookchains {
 public:
 	CRehldsHookRegistry_Steam_NotifyClientConnect m_Steam_NotifyClientConnect;
@@ -178,6 +182,7 @@ public:
 	CRehldsHookRegistry_SV_CheckConsistencyResponse m_SV_CheckConsistencyResponse;
 	CRehldsHookRegistry_SV_DropClient m_SV_DropClient;
 	CRehldsHookRegistry_SV_ActivateServer m_SV_ActivateServer;
+	CRehldsHookRegistry_SV_WriteVoiceCodec m_SV_WriteVoiceCodec;
 
 public:
 	virtual IRehldsHookRegistry_Steam_NotifyClientConnect* Steam_NotifyClientConnect();
@@ -209,6 +214,7 @@ public:
 	virtual IRehldsHookRegistry_SV_CheckConsistencyResponse* SV_CheckConsistencyResponse();
 	virtual	IRehldsHookRegistry_SV_DropClient* SV_DropClient();
 	virtual	IRehldsHookRegistry_SV_ActivateServer* SV_ActivateServer();
+	virtual	IRehldsHookRegistry_SV_WriteVoiceCodec* SV_WriteVoiceCodec();
 };
 
 extern CRehldsHookchains g_RehldsHookchains;
diff --git a/rehlds/rehlds/rehlds_interfaces_impl.cpp b/rehlds/rehlds/rehlds_interfaces_impl.cpp
index 9fc85cc..dc92a5d 100644
--- a/rehlds/rehlds/rehlds_interfaces_impl.cpp
+++ b/rehlds/rehlds/rehlds_interfaces_impl.cpp
@@ -63,13 +63,25 @@ void EXT_FUNC CGameClient::SetSpawned(bool spawned)
 }
 
 bool EXT_FUNC CGameClient::IsConnected() {
-	return m_pClient->connected != 0;;
+	return m_pClient->connected != 0;
 }
 
 void EXT_FUNC CGameClient::SetConnected(bool connected) {
 	m_pClient->connected = connected ? 1 : 0;
 }
 
+uint32 EXT_FUNC CGameClient::GetVoiceStreams(int id) {
+	return m_pClient->m_VoiceStreams[id >> 5];
+}
+
+double EXT_FUNC CGameClient::GetLastVoiceTime() {
+	return m_pClient->m_lastvoicetime;
+}
+
+bool EXT_FUNC CGameClient::GetLoopback() {
+	return m_pClient->m_bLoopback != 0;
+}
+
 INetChan* EXT_FUNC CGameClient::GetNetChan()
 {
 	return &m_NetChan;
@@ -207,6 +219,10 @@ int EXT_FUNC CRehldsServerData::GetDecalNameNum() {
 	return sv_decalnamecount;
 }
 
+double EXT_FUNC CRehldsServerData::GetTime() {
+	return g_psv.time;
+}
+
 void Rehlds_Interfaces_FreeClients() 
 {
 	if (g_GameClients == NULL)
diff --git a/rehlds/rehlds/rehlds_interfaces_impl.h b/rehlds/rehlds/rehlds_interfaces_impl.h
index 61da653..e4543a5 100644
--- a/rehlds/rehlds/rehlds_interfaces_impl.h
+++ b/rehlds/rehlds/rehlds_interfaces_impl.h
@@ -76,6 +76,9 @@ public:
 	virtual bool IsConnected();
 	virtual void SetConnected(bool connected);
 
+	virtual uint32 GetVoiceStreams(int id);
+	virtual double GetLastVoiceTime();
+	virtual bool GetLoopback();
 
 	virtual client_t* GetClient();
 };
@@ -103,6 +106,8 @@ public:
 	virtual int GetConsistencyNum();
 	virtual int GetResourcesNum();
 	virtual int GetDecalNameNum();
+
+	virtual double GetTime();
 };
 
 extern CGameClient** g_GameClients;