diff --git a/rater/calldesc.go b/rater/calldesc.go
index 6431580e6..039b11405 100644
--- a/rater/calldesc.go
+++ b/rater/calldesc.go
@@ -75,6 +75,8 @@ type CallDescriptor struct {
 	TOR                                   string
 	Tenant, Subject, Account, Destination string
 	TimeStart, TimeEnd                    time.Time
+	LoopIndex                             float64 // indicates the postion of this segment in a cost request loop
+	CallDuration                          float64 // the call duration so far (partial or final)
 	Amount                                float64
 	FallbackSubject                       string // the subject to check for destination if not found on primary subject
 	ActivationPeriods                     []*ActivationPeriod
@@ -266,11 +268,13 @@ func (cd *CallDescriptor) GetCost() (*CallCost, error) {
 	timespans := cd.splitInTimeSpans()
 	cost := 0.0
 	connectionFee := 0.0
-	for i, ts := range timespans {
-		if i == 0 && ts.MinuteInfo == nil && ts.Interval != nil {
-			connectionFee = ts.Interval.ConnectFee
+	if cd.LoopIndex == 0 { // only add connect fee if this is the first/only call cost request
+		for i, ts := range timespans {
+			if i == 0 && ts.MinuteInfo == nil && ts.Interval != nil {
+				connectionFee = ts.Interval.ConnectFee
+			}
+			cost += ts.getCost(cd)
 		}
-		cost += ts.getCost(cd)
 	}
 	cc := &CallCost{
 		Direction:   cd.Direction,
diff --git a/sessionmanager/fssessionmanager.go b/sessionmanager/fssessionmanager.go
index b36c73905..48e1e9960 100644
--- a/sessionmanager/fssessionmanager.go
+++ b/sessionmanager/fssessionmanager.go
@@ -211,6 +211,8 @@ func (sm *FSSessionManager) OnChannelHangupComplete(ev Event) {
 			TOR:             ev.GetTOR(),
 			Subject:         ev.GetSubject(),
 			Account:         ev.GetAccount(),
+			LoopIndex:       0,
+			CallDuration:    endTime.Sub(startTime).Seconds(),
 			Destination:     ev.GetDestination(),
 			TimeStart:       startTime,
 			TimeEnd:         endTime,
@@ -230,7 +232,7 @@ func (sm *FSSessionManager) OnChannelHangupComplete(ev Event) {
 		return // why would we have 0 callcosts
 	}
 	lastCC := s.CallCosts[len(s.CallCosts)-1]
-	// put credit back	
+	// put credit back
 	start := time.Now()
 	end := lastCC.Timespans[len(lastCC.Timespans)-1].TimeEnd
 	refoundDuration := end.Sub(start).Seconds()
@@ -303,9 +305,11 @@ func (sm *FSSessionManager) OnChannelHangupComplete(ev Event) {
 
 }
 
-func (sm *FSSessionManager) LoopAction(s *Session, cd *rater.CallDescriptor) {
+func (sm *FSSessionManager) LoopAction(s *Session, cd *rater.CallDescriptor, index float64) {
 	cc := &rater.CallCost{}
+	cd.LoopIndex = index
 	cd.Amount = sm.debitPeriod.Seconds()
+	cd.CallDuration += cd.Amount
 	err := sm.connector.MaxDebit(*cd, cc)
 	if err != nil {
 		rater.Logger.Err(fmt.Sprintf("Could not complete debit opperation: %v", err))
diff --git a/sessionmanager/session.go b/sessionmanager/session.go
index 0dc7acde2..ccded4cea 100644
--- a/sessionmanager/session.go
+++ b/sessionmanager/session.go
@@ -38,7 +38,7 @@ type Session struct {
 
 // Creates a new session and starts the debit loop
 func NewSession(ev Event, sm SessionManager) (s *Session) {
-	// Ignore calls which have nothing to do with CGRateS 
+	// Ignore calls which have nothing to do with CGRateS
 	if strings.TrimSpace(ev.GetReqType()) == "" {
 		return
 	}
@@ -80,6 +80,7 @@ func NewSession(ev Event, sm SessionManager) (s *Session) {
 // the debit loop method (to be stoped by sending somenting on stopDebit channel)
 func (s *Session) startDebitLoop() {
 	nextCd := *s.callDescriptor
+	index := 0.0
 	for {
 		select {
 		case <-s.stopDebit:
@@ -90,8 +91,9 @@ func (s *Session) startDebitLoop() {
 			nextCd.TimeStart = time.Now()
 		}
 		nextCd.TimeEnd = time.Now().Add(s.sessionManager.GetDebitPeriod())
-		s.sessionManager.LoopAction(s, &nextCd)
+		s.sessionManager.LoopAction(s, &nextCd, index)
 		time.Sleep(s.sessionManager.GetDebitPeriod())
+		index++
 	}
 }
 
@@ -127,7 +129,7 @@ func (s *Session) String() string {
 	return fmt.Sprintf("%v: %s(%s) -> %s", s.callDescriptor.TimeStart, s.callDescriptor.Subject, s.callDescriptor.Account, s.callDescriptor.Destination)
 }
 
-// 
+//
 func (s *Session) SaveOperations() {
 	go func() {
 		if s == nil || len(s.CallCosts) == 0 {
diff --git a/sessionmanager/sessionmanager.go b/sessionmanager/sessionmanager.go
index 81a6d9ed0..ba58f25de 100644
--- a/sessionmanager/sessionmanager.go
+++ b/sessionmanager/sessionmanager.go
@@ -28,7 +28,7 @@ type SessionManager interface {
 	Connect(*config.CGRConfig) error
 	DisconnectSession(*Session, string)
 	RemoveSession(*Session)
-	LoopAction(*Session, *rater.CallDescriptor)
+	LoopAction(*Session, *rater.CallDescriptor, float64)
 	GetDebitPeriod() time.Duration
 	GetDbLogger() rater.DataStorage
 	Shutdown() error