diff --git a/cmd/loader/loader.go b/cmd/loader/loader.go
index cca8528f4..1a2dd75f1 100644
--- a/cmd/loader/loader.go
+++ b/cmd/loader/loader.go
@@ -18,6 +18,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package main
 
 import (
+	"bytes"
+	//"encoding/gob"
 	"encoding/json"
 	"flag"
 	"github.com/rif/cgrates/timespans"
@@ -39,6 +41,27 @@ var (
 	ubfile      = flag.String("ubfile", "ub.json", "User budgets file")
 )
 
+func testGob(key string, aps []*timespans.ActivationPeriod) {
+	var buf bytes.Buffer
+	enc := json.NewEncoder(&buf)
+	dec := json.NewDecoder(&buf)
+
+	enc.Encode(aps)
+	result := buf.String()
+
+	aps1 := make([]*timespans.ActivationPeriod, 0)
+	buf.Reset()
+	buf.WriteString(result)
+	err := dec.Decode(&aps1)
+	log.Print("Err: ", err)
+
+	buf.Reset()
+	enc.Encode(aps1)
+	result1 := buf.String()
+
+	log.Print("Equal? ", result == result1, len(result), len(result1))
+}
+
 func writeToStorage(storage timespans.StorageGetter,
 	callDescriptors []*timespans.CallDescriptor,
 	destinations []*timespans.Destination,
@@ -47,6 +70,7 @@ func writeToStorage(storage timespans.StorageGetter,
 	for _, cd := range callDescriptors {
 		storage.SetActivationPeriods(cd.GetKey(), cd.ActivationPeriods)
 		log.Printf("Storing activation periods for %q", cd.GetKey())
+		testGob(cd.GetKey(), cd.ActivationPeriods)
 	}
 	for _, d := range destinations {
 		storage.SetDestination(d)
@@ -64,7 +88,6 @@ func writeToStorage(storage timespans.StorageGetter,
 
 func main() {
 	flag.Parse()
-
 	log.Printf("Reading from %s, %s, %s", *apfile, *destfile, *tpfile)
 
 	// reading activation periods
diff --git a/timespans/activationperiod.go b/timespans/activationperiod.go
index 613e69e2d..9f8b4b0dd 100644
--- a/timespans/activationperiod.go
+++ b/timespans/activationperiod.go
@@ -18,8 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package timespans
 
 import (
-	"strconv"
-	"strings"
 	"time"
 	//"log"
 )
@@ -40,57 +38,3 @@ func (ap *ActivationPeriod) AddInterval(is ...*Interval) {
 		ap.Intervals = append(ap.Intervals, i)
 	}
 }
-
-/*
-Serializes the activation periods for the storage. Used for key-value storages.
-*/
-func (ap *ActivationPeriod) store() (result string) {
-	result += strconv.FormatInt(ap.ActivationTime.UnixNano(), 10) + ";"
-	for _, i := range ap.Intervals {
-		var is string
-		is = strconv.Itoa(int(i.Month)) + "|"
-		is += strconv.Itoa(i.MonthDay) + "|"
-		for _, wd := range i.WeekDays {
-			is += strconv.Itoa(int(wd)) + ","
-		}
-		is = strings.TrimRight(is, ",") + "|"
-		is += i.StartTime + "|"
-		is += i.EndTime + "|"
-		is += strconv.FormatFloat(i.Ponder, 'f', -1, 64) + "|"
-		is += strconv.FormatFloat(i.ConnectFee, 'f', -1, 64) + "|"
-		is += strconv.FormatFloat(i.Price, 'f', -1, 64) + "|"
-		is += strconv.FormatFloat(i.BillingUnit, 'f', -1, 64)
-		result += is + ";"
-	}
-	return
-}
-
-/*
-De-serializes the activation periods for the storage. Used for key-value storages.
-*/
-func (ap *ActivationPeriod) restore(input string) {
-	elements := strings.Split(input, ";")
-	unixNano, _ := strconv.ParseInt(elements[0], 10, 64)
-	ap.ActivationTime = time.Unix(0, unixNano).In(time.UTC)
-	for _, is := range elements[1 : len(elements)-1] {
-		i := &Interval{}
-		ise := strings.Split(is, "|")
-		month, _ := strconv.Atoi(ise[0])
-		i.Month = time.Month(month)
-		i.MonthDay, _ = strconv.Atoi(ise[1])
-		for _, d := range strings.Split(ise[2], ",") {
-			if d != "" {
-				wd, _ := strconv.Atoi(d)
-				i.WeekDays = append(i.WeekDays, time.Weekday(wd))
-			}
-		}
-		i.StartTime = ise[3]
-		i.EndTime = ise[4]
-		i.Ponder, _ = strconv.ParseFloat(ise[5], 64)
-		i.ConnectFee, _ = strconv.ParseFloat(ise[6], 64)
-		i.Price, _ = strconv.ParseFloat(ise[7], 64)
-		i.BillingUnit, _ = strconv.ParseFloat(ise[8], 64)
-
-		ap.Intervals = append(ap.Intervals, i)
-	}
-}
diff --git a/timespans/activationperiod_test.go b/timespans/activationperiod_test.go
index e30fef9a2..04a0b80e9 100644
--- a/timespans/activationperiod_test.go
+++ b/timespans/activationperiod_test.go
@@ -19,64 +19,9 @@ package timespans
 
 import (
 	"testing"
-	"time"
 	//"log"
 )
 
 func TestApStoreRestore(t *testing.T) {
-	d := time.Date(2012, time.February, 1, 14, 30, 1, 0, time.UTC)
-	i := &Interval{Month: time.February,
-		MonthDay:  1,
-		WeekDays:  []time.Weekday{time.Wednesday, time.Thursday},
-		StartTime: "14:30:00",
-		EndTime:   "15:00:00"}
-	ap := &ActivationPeriod{ActivationTime: d}
-	ap.AddInterval(i)
-	result := ap.store()
-	expected := "1328106601000000000;2|1|3,4|14:30:00|15:00:00|0|0|0|0;"
-	if result != expected {
-		t.Errorf("Expected %q was %q", expected, result)
-	}
-	ap1 := ActivationPeriod{}
-	ap1.restore(result)
-	if ap1.ActivationTime != ap.ActivationTime {
-		t.Errorf("Expected %v was %v", ap.ActivationTime, ap1.ActivationTime)
-	}
-	i1 := ap1.Intervals[0]
-	if i1.Month != i.Month {
-		t.Errorf("Expected %q was %q", i.Month, i1.Month)
-	}
-	if i1.MonthDay != i.MonthDay {
-		t.Errorf("Expected %q was %q", i.MonthDay, i1.MonthDay)
-	}
-	for j, wd := range i1.WeekDays {
-		if wd != i1.WeekDays[j] {
-			t.Errorf("Expected %q was %q", i.StartTime, i1.StartTime)
-		}
-	}
-	if i1.StartTime != i.StartTime {
-		t.Errorf("Expected %q was %q", i.StartTime, i1.StartTime)
-	}
-	if i1.EndTime != i.EndTime {
-		t.Errorf("Expected %q was %q", i.EndTime, i1.EndTime)
-	}
-	if i1.Ponder != i.Ponder {
-		t.Errorf("Expected %q was %q", i.Ponder, i1.Ponder)
-	}
-	if i1.ConnectFee != i.ConnectFee {
-		t.Errorf("Expected %q was %q", i.ConnectFee, i1.ConnectFee)
-	}
-	if i1.Price != i.Price {
-		t.Errorf("Expected %q was %q", i.Price, i1.Price)
-	}
-	if i1.BillingUnit != i.BillingUnit {
-		t.Errorf("Expected %q was %q", i.BillingUnit, i1.BillingUnit)
-	}
-}
 
-func BenchmarkActivationPeriodRestore(b *testing.B) {
-	ap := ActivationPeriod{}
-	for i := 0; i < b.N; i++ {
-		ap.restore("1328106601;2|1|3,4|14:30:00|15:00:00|0|0|0|0;")
-	}
 }
diff --git a/timespans/calldesc.go b/timespans/calldesc.go
index 01ef57f15..888081061 100644
--- a/timespans/calldesc.go
+++ b/timespans/calldesc.go
@@ -86,9 +86,9 @@ func (cd *CallDescriptor) SetStorageGetter(sg StorageGetter) {
 }
 
 /*
-Restores the activation periods from storage.
+Restores the activation periods for the specified prefix from storage.
 */
-func (cd *CallDescriptor) RestoreFromStorage() (destPrefix string, err error) {
+func (cd *CallDescriptor) SearchStorageForPrefix() (destPrefix string, err error) {
 	cd.ActivationPeriods = make([]*ActivationPeriod, 0)
 	base := fmt.Sprintf("%s:%s:", cd.CstmId, cd.Subject)
 	destPrefix = cd.DestinationPrefix
@@ -200,14 +200,14 @@ func (cd *CallDescriptor) splitTimeSpan(firstSpan *TimeSpan) (timespans []*TimeS
 Creates a CallCost structure with the cost nformation calculated for the received CallDescriptor.
 */
 func (cd *CallDescriptor) GetCost() (*CallCost, error) {
-	destPrefix, err := cd.RestoreFromStorage()
+	destPrefix, err := cd.SearchStorageForPrefix()
 
 	timespans := cd.splitInTimeSpans()
 
 	cost := 0.0
 	connectionFee := 0.0
 	for i, ts := range timespans {
-		if ts.MinuteInfo == nil && i == 0 {
+		if i == 0 && ts.MinuteInfo == nil && ts.Interval != nil {
 			connectionFee = ts.Interval.ConnectFee
 		}
 		cost += ts.GetCost(cd)
@@ -227,7 +227,7 @@ func (cd *CallDescriptor) GetCost() (*CallCost, error) {
 Returns the cost of a second in the present time conditions.
 */
 func (cd *CallDescriptor) getPresentSecondCost() (cost float64, err error) {
-	_, err = cd.RestoreFromStorage()
+	_, err = cd.SearchStorageForPrefix()
 	now := time.Now()
 	oneSecond, _ := time.ParseDuration("1s")
 	ts := &TimeSpan{TimeStart: now, TimeEnd: now.Add(oneSecond)}
@@ -245,7 +245,7 @@ and will decrease it by 10% for nine times. So if the user has little credit it
 If the user has no credit then it will return 0.
 */
 func (cd *CallDescriptor) GetMaxSessionTime() (seconds float64, err error) {
-	_, err = cd.RestoreFromStorage()
+	_, err = cd.SearchStorageForPrefix()
 	now := time.Now()
 	availableCredit, availableSeconds := 0.0, 0.0
 	if userBudget, err := cd.getUserBudget(); err == nil && userBudget != nil {
diff --git a/timespans/calldesc_test.go b/timespans/calldesc_test.go
index 04f5f6ddf..6ec227f8a 100644
--- a/timespans/calldesc_test.go
+++ b/timespans/calldesc_test.go
@@ -24,7 +24,7 @@ import (
 )
 
 func TestKyotoStoreRestore(t *testing.T) {
-	getter, _ := NewKyotoStorage("test.kch")
+	getter, _ := NewRedisStorage("tcp:127.0.0.1:6379", 10)
 	defer getter.Close()
 	d := time.Date(2012, time.February, 1, 14, 30, 1, 0, time.UTC)
 	i := &Interval{Month: time.February,
@@ -54,7 +54,7 @@ func TestKyotoSplitSpans(t *testing.T) {
 	t2 := time.Date(2012, time.February, 2, 18, 30, 0, 0, time.UTC)
 	cd := &CallDescriptor{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0256", TimeStart: t1, TimeEnd: t2, storageGetter: getter}
 
-	cd.RestoreFromStorage()
+	cd.SearchStorageForPrefix()
 	timespans := cd.splitInTimeSpans()
 	if len(timespans) != 2 {
 		t.Log(cd.ActivationPeriods)
@@ -70,7 +70,7 @@ func TestRedisSplitSpans(t *testing.T) {
 	t2 := time.Date(2012, time.February, 2, 18, 30, 0, 0, time.UTC)
 	cd := &CallDescriptor{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0257", TimeStart: t1, TimeEnd: t2, storageGetter: getter}
 
-	cd.RestoreFromStorage()
+	cd.SearchStorageForPrefix()
 	timespans := cd.splitInTimeSpans()
 	if len(timespans) != 2 {
 		t.Log(cd.ActivationPeriods)
@@ -136,6 +136,7 @@ func TestFullDestNotFound(t *testing.T) {
 	result, _ := cd.GetCost()
 	expected := &CallCost{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0256", Cost: 540, ConnectFee: 0}
 	if result.Cost != expected.Cost || result.ConnectFee != expected.ConnectFee {
+		t.Log(cd.ActivationPeriods)
 		t.Errorf("Expected %v was %v", expected, result)
 	}
 }
@@ -150,8 +151,7 @@ func TestMultipleActivationPeriods(t *testing.T) {
 	result, _ := cd.GetCost()
 	expected := &CallCost{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0257", Cost: 330, ConnectFee: 0}
 	if result.Cost != expected.Cost || result.ConnectFee != expected.ConnectFee {
-		t.Log(result.Timespans[0].ActivationPeriod)
-		t.Log(result.Timespans[1].ActivationPeriod)
+		t.Log(result.Timespans)
 		t.Errorf("Expected %v was %v", expected, result)
 	}
 }
@@ -298,7 +298,7 @@ func BenchmarkRedisRestoring(b *testing.B) {
 	cd := &CallDescriptor{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0256", TimeStart: t1, TimeEnd: t2, storageGetter: getter}
 	b.StartTimer()
 	for i := 0; i < b.N; i++ {
-		cd.RestoreFromStorage()
+		cd.SearchStorageForPrefix()
 	}
 }
 
@@ -341,7 +341,7 @@ func BenchmarkKyotoRestoring(b *testing.B) {
 	cd := &CallDescriptor{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0256", TimeStart: t1, TimeEnd: t2, storageGetter: getter}
 	b.StartTimer()
 	for i := 0; i < b.N; i++ {
-		cd.RestoreFromStorage()
+		cd.SearchStorageForPrefix()
 	}
 }
 
@@ -353,7 +353,7 @@ func BenchmarkSplitting(b *testing.B) {
 	t1 := time.Date(2012, time.February, 2, 17, 30, 0, 0, time.UTC)
 	t2 := time.Date(2012, time.February, 2, 18, 30, 0, 0, time.UTC)
 	cd := &CallDescriptor{CstmId: "vdf", Subject: "rif", DestinationPrefix: "0256", TimeStart: t1, TimeEnd: t2, storageGetter: getter}
-	cd.RestoreFromStorage()
+	cd.SearchStorageForPrefix()
 	b.StartTimer()
 	for i := 0; i < b.N; i++ {
 		cd.splitInTimeSpans()
diff --git a/timespans/kyoto_storage.go b/timespans/kyoto_storage.go
index eef3eb6c5..6a9d299ca 100644
--- a/timespans/kyoto_storage.go
+++ b/timespans/kyoto_storage.go
@@ -18,45 +18,52 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package timespans
 
 import (
+	"bytes"
+	"encoding/gob"
 	"github.com/fsouza/gokabinet/kc"
-	//"log"
-	"strings"
+	// "log"
+	"sync"
 )
 
 type KyotoStorage struct {
-	db *kc.DB
+	db  *kc.DB
+	buf bytes.Buffer
+	enc *gob.Encoder
+	dec *gob.Decoder
+	mux sync.Mutex // we need norma lock because we reset the buf variable
 }
 
 func NewKyotoStorage(filaName string) (*KyotoStorage, error) {
 	ndb, err := kc.Open(filaName, kc.WRITE)
-	return &KyotoStorage{db: ndb}, err
+	ks := &KyotoStorage{db: ndb}
+	ks.enc = gob.NewEncoder(&ks.buf)
+	ks.dec = gob.NewDecoder(&ks.buf)
+	return ks, err
 }
 
 func (ks *KyotoStorage) Close() {
 	ks.db.Close()
 }
 
-func (ks *KyotoStorage) GetActivationPeriods(key string) (aps []*ActivationPeriod, err error) {
-	values, err := ks.db.Get(key)
+func (ks *KyotoStorage) SetActivationPeriods(key string, aps []*ActivationPeriod) error {
+	ks.mux.Lock()
+	defer ks.mux.Unlock()
 
-	if err == nil {
-		for _, ap_string := range strings.Split(values, "\n") {
-			if len(ap_string) > 0 {
-				ap := &ActivationPeriod{}
-				ap.restore(ap_string)
-				aps = append(aps, ap)
-			}
-		}
-	}
-	return aps, err
+	ks.buf.Reset()
+	ks.enc.Encode(aps)
+	return ks.db.Set(key, ks.buf.String())
 }
 
-func (ks *KyotoStorage) SetActivationPeriods(key string, aps []*ActivationPeriod) error {
-	result := ""
-	for _, ap := range aps {
-		result += ap.store() + "\n"
-	}
-	return ks.db.Set(key, result)
+func (ks *KyotoStorage) GetActivationPeriods(key string) (aps []*ActivationPeriod, err error) {
+	ks.mux.Lock()
+	defer ks.mux.Unlock()
+
+	values, err := ks.db.Get(key)
+
+	ks.buf.Reset()
+	ks.buf.WriteString(values)
+	ks.dec.Decode(&aps)
+	return
 }
 
 func (ks *KyotoStorage) GetDestination(key string) (dest *Destination, err error) {
diff --git a/timespans/redis_storage.go b/timespans/redis_storage.go
index c70d5e0d1..8987d9865 100644
--- a/timespans/redis_storage.go
+++ b/timespans/redis_storage.go
@@ -18,47 +18,57 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package timespans
 
 import (
+	"bytes"
+	"encoding/gob"
 	"github.com/simonz05/godis"
-	"strings"
+	"log"
+	"sync"
 )
 
 type RedisStorage struct {
 	dbNb int
 	db   *godis.Client
+	buf  bytes.Buffer
+	enc  *gob.Encoder
+	dec  *gob.Decoder
+	mux  sync.Mutex
 }
 
 func NewRedisStorage(address string, db int) (*RedisStorage, error) {
 	ndb := godis.New(address, db, "")
-	return &RedisStorage{db: ndb, dbNb: db}, nil
+	rs := &RedisStorage{db: ndb, dbNb: db}
+
+	rs.enc = gob.NewEncoder(&rs.buf)
+	rs.dec = gob.NewDecoder(&rs.buf)
+	return rs, nil
 }
 
 func (rs *RedisStorage) Close() {
 	rs.db.Quit()
 }
 
-func (rs *RedisStorage) GetActivationPeriods(key string) (aps []*ActivationPeriod, err error) {
-	//rs.db.Select(rs.dbNb)
-	elem, err := rs.db.Get(key)
-	values := elem.String()
-	if err == nil {
-		for _, ap_string := range strings.Split(values, "\n") {
-			if len(ap_string) > 0 {
-				ap := &ActivationPeriod{}
-				ap.restore(ap_string)
-				aps = append(aps, ap)
-			}
-		}
-	}
-	return aps, err
-}
-
 func (rs *RedisStorage) SetActivationPeriods(key string, aps []*ActivationPeriod) error {
 	//.db.Select(rs.dbNb)
-	result := ""
-	for _, ap := range aps {
-		result += ap.store() + "\n"
-	}
-	return rs.db.Set(key, result)
+	rs.mux.Lock()
+	defer rs.mux.Unlock()
+
+	rs.buf.Reset()
+	rs.enc.Encode(aps)
+	return rs.db.Set(key, rs.buf.Bytes())
+}
+
+func (rs *RedisStorage) GetActivationPeriods(key string) (aps []*ActivationPeriod, err error) {
+	//rs.db.Select(rs.dbNb)
+	rs.mux.Lock()
+	defer rs.mux.Unlock()
+
+	elem, err := rs.db.Get(key)
+	rs.buf.Reset()
+	rs.buf.Write(elem.Bytes())
+
+	e := rs.dec.Decode(&aps)
+	log.Print(e)
+	return
 }
 
 func (rs *RedisStorage) GetDestination(key string) (dest *Destination, err error) {
diff --git a/timespans/test.kch b/timespans/test.kch
index 99f1e2ebf..4c956cefe 100644
Binary files a/timespans/test.kch and b/timespans/test.kch differ