diff --git a/src/tbf.cpp b/src/tbf.cpp
index bdba2e7..4b78595 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -101,7 +101,7 @@
 	num_fT_exp(0),
 	upgrade_to_multislot(false),
 	bts(bts_),
-	m_tfi(0),
+	m_tfi(TBF_TFI_UNSET),
 	m_created_ts(0),
 	m_ctrs(NULL),
 	m_ms(ms),
@@ -719,9 +719,10 @@
 
 const char *gprs_rlcmac_tbf::name() const
 {
+	int8_t tfi = m_tfi == TBF_TS_UNSET ? -1 : m_tfi;
 	snprintf(m_name_buf, sizeof(m_name_buf) - 1,
 		"TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)",
-		m_tfi, tlli(),
+		tfi, tlli(),
 		direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL",
 		state_name(),
 		is_egprs_enabled() ? " EGPRS" : ""
diff --git a/src/tbf.h b/src/tbf.h
index 4652d95..9ce1813 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -117,6 +117,7 @@
 #define GPRS_RLCMAC_FLAG_TO_MASK	0xf0 /* timeout bits */
 
 #define TBF_TS_UNSET 0xff
+#define TBF_TFI_UNSET 0xff
 
 #define T_START(tbf, t, T, r, f) tbf->t_start(t, T, r, f, __FILE__, __LINE__)
 
diff --git a/tests/alloc/AllocTest.err b/tests/alloc/AllocTest.err
index 1ca4b3b..cb98332 100644
--- a/tests/alloc/AllocTest.err
+++ b/tests/alloc/AllocTest.err
@@ -389,7 +389,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -748,7 +748,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -1595,7 +1595,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -2294,7 +2294,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -474805,7 +474805,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -474994,7 +474994,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -475183,7 +475183,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -475468,7 +475468,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -475681,7 +475681,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -475895,7 +475895,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No USF available
 [UL] algo A <multi> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -476330,7 +476330,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -476529,7 +476529,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -476729,7 +476729,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No USF available
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -479307,7 +479307,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -479836,7 +479836,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No TFI available (suggested TRX: 0).
 [DL] algo B <multi> (suggested TRX: 0): failed to allocate a TFI
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -481537,7 +481537,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -482112,7 +482112,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -482371,7 +482371,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -482631,7 +482631,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No USF available
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -482854,7 +482854,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -482953,7 +482953,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -483095,7 +483095,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No USF available
 [UL] algo A <multi> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -484069,7 +484069,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -484272,7 +484272,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No TFI available (suggested TRX: -1).
 [DL] algo B <multi> (suggested TRX: -1): failed to allocate a TFI
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -484959,7 +484959,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -487533,7 +487533,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -487753,7 +487753,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xc0000023 DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xc0000023 DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -491263,7 +491263,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -493033,7 +493033,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -493563,7 +493563,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No TFI available (suggested TRX: 0).
 [DL] algo B <multi> (suggested TRX: 0): failed to allocate a TFI
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -493679,7 +493679,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 No USF available
-TBF(TFI=0 TLLI=0xc0000011 DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xc0000011 DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -494436,7 +494436,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No TFI available (suggested TRX: 0).
 [DL] algo B <multi> (suggested TRX: 0): failed to allocate a TFI
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -494803,7 +494803,7 @@
 DL_ASS_TBF{NONE}: Allocated
 No TFI available (suggested TRX: -1).
 [DL] algo B <multi> (suggested TRX: -1): failed to allocate a TFI
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -496297,7 +496297,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -496409,7 +496409,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xc0000011 DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xc0000011 DIR=UL STATE=NEW) Timeslot Allocation failed: trx = 0, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -499422,7 +499422,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [UL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -501192,7 +501192,7 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <multi> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
+TBF(TFI=-1 TLLI=0xffffffff DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 0
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
diff --git a/tests/ms/MsTest.err b/tests/ms/MsTest.err
index 6adbfc4..d4895b9 100644
--- a/tests/ms/MsTest.err
+++ b/tests/ms/MsTest.err
@@ -1,22 +1,22 @@
 Creating MS object, TLLI = 0xffeeddbb
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, UL) Attaching DL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, UL) Attaching DL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
 MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Destroying MS object
 Creating MS object, TLLI = 0xffeeddbb
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, UL) Attaching DL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, UL) Attaching DL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
 MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Destroying MS object
 Creating MS object, TLLI = 0xffeeddbb
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Attaching DL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Attaching DL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
 MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Destroying MS object
 Creating MS object, TLLI = 0xaa000000
 Modifying MS object, UL TLLI: 0xaa000000 -> 0xff001111, not yet confirmed
@@ -41,21 +41,21 @@
 Creating MS object, TLLI = 0xffffffff
 Modifying MS object, UL TLLI: 0xffffffff -> 0xffeeddbc, not yet confirmed
 Modifying MS object, TLLI = 0xffeeddbc, IMSI '' -> '001001987654322'
-MS(TLLI=0xffeeddbb, IMSI=001001987654321, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=001001987654321, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=001001987654321, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=001001987654321, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
 MS(TLLI=0xffeeddbb, IMSI=001001987654321, TA=220, 0/0,) Destroying MS object
-MS(TLLI=0xffeeddbc, IMSI=001001987654322, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbc, IMSI=001001987654322, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbc, IMSI=001001987654322, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbc, IMSI=001001987654322, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW)
 MS(TLLI=0xffeeddbc, IMSI=001001987654322, TA=220, 0/0,) Destroying MS object
 Creating MS object, TLLI = 0xffeeddbb
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, UL) Attaching DL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=UL STATE=NEW)
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, UL) Attaching DL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0, DL) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=UL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
 MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Release timer expired
 MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Destroying MS object
 Creating MS object, TLLI = 0xffeeddbb
-MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=0 TLLI=0xffeeddbb DIR=DL STATE=NEW)
+MS(TLLI=0xffeeddbb, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=-1 TLLI=0xffeeddbb DIR=DL STATE=NEW)
 Creating MS object, TLLI = 0xdeadbeef
 Creating MS object, TLLI = 0xdeadbef0
-MS(TLLI=0xdeadbef0, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=0 TLLI=0xdeadbef0 DIR=DL STATE=NEW)
+MS(TLLI=0xdeadbef0, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=-1 TLLI=0xdeadbef0 DIR=DL STATE=NEW)
diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err
index 0374f57..7d2d534 100644
--- a/tests/tbf/TbfTest.err
+++ b/tests/tbf/TbfTest.err
@@ -1601,7 +1601,7 @@
 DL_ASS_TBF{NONE}: Allocated
 [DL] algo A <single> (suggested TRX: -1): Alloc start
 [DL] algo A <single> (suggested TRX: -1): failed to find a usable TRX (TFI exhausted)
-TBF(TFI=0 TLLI=0xc0000020 DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 1
+TBF(TFI=-1 TLLI=0xc0000020 DIR=DL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 1
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
 DL_ASS_TBF{NONE}: Deallocated
@@ -7320,7 +7320,7 @@
 - Skipping TS 6, because not enabled
 - Skipping TS 7, because no USF available
 [UL] algo A <single> (suggested TRX: -1): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 1
+TBF(TFI=-1 TLLI=0xffffffff DIR=UL STATE=NEW) Timeslot Allocation failed: trx = -1, single_slot = 1
 UL_ACK_TBF{NONE}: Deallocated
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
@@ -9066,7 +9066,7 @@
 - Skipping TS 6, because not enabled
 - Skipping TS 7, because no USF available
 [UL] algo A <multi> (suggested TRX: 0): failed to allocate a TS, no USF available
-TBF(TFI=0 TLLI=0xffeeddd3 DIR=UL STATE=NEW EGPRS) Timeslot Allocation failed: trx = 0, single_slot = 0
+TBF(TFI=-1 TLLI=0xffeeddd3 DIR=UL STATE=NEW EGPRS) Timeslot Allocation failed: trx = 0, single_slot = 0
 UL_ACK_TBF{NONE}: Deallocated
 TBF{NEW}: Deallocated
 UL_ASS_TBF{NONE}: Deallocated
@@ -9076,12 +9076,12 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 UL_ACK_TBF{NONE}: Allocated
-TBF(TFI=0 TLLI=0xffeeddd3 DIR=UL STATE=NEW) Setting Control TS 7
-MS(TLLI=0xffeeddd3, IMSI=, TA=7, 11/11,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddd3 DIR=UL STATE=NEW)
+TBF(TFI=-1 TLLI=0xffeeddd3 DIR=UL STATE=NEW) Setting Control TS 7
+MS(TLLI=0xffeeddd3, IMSI=, TA=7, 11/11,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddd3 DIR=UL STATE=NEW)
 TBF{NEW}: Received Event ASSIGN_ADD_PACCH
-TBF(TFI=0 TLLI=0xffeeddd3 DIR=UL STATE=NEW) set ass. type PACCH [prev CCCH:0, PACCH:0]
+TBF(TFI=-1 TLLI=0xffeeddd3 DIR=UL STATE=NEW) set ass. type PACCH [prev CCCH:0, PACCH:0]
 TBF{NEW}: state_chg to ASSIGN
-TBF(TFI=0 TLLI=0xffeeddd3 DIR=UL STATE=ASSIGN) Starting timer X2001 [assignment (PACCH)] with 2 sec. 0 microsec
+TBF(TFI=-1 TLLI=0xffeeddd3 DIR=UL STATE=ASSIGN) Starting timer X2001 [assignment (PACCH)] with 2 sec. 0 microsec
 UL_ASS_TBF{NONE}: Received Event SCHED_ASS_REJ
 UL_ASS_TBF{NONE}: state_chg to SEND_ASS_REJ
 PDCH(bts=0,trx=0,ts=7) Expiring FN=82 but previous FN=2654231 is still reserved!
@@ -9107,21 +9107,21 @@
 UL_ASS_TBF{NONE}: Allocated
 DL_ASS_TBF{NONE}: Allocated
 UL_ACK_TBF{NONE}: Allocated
-TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=NEW) Setting Control TS 7
-MS(TLLI=0xffeeddcc, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=NEW)
+TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=NEW) Setting Control TS 7
+MS(TLLI=0xffeeddcc, IMSI=, TA=220, 0/0,) Attaching UL TBF: TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=NEW)
 TBF{NEW}: Received Event ASSIGN_ADD_PACCH
-TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=NEW) set ass. type PACCH [prev CCCH:0, PACCH:0]
+TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=NEW) set ass. type PACCH [prev CCCH:0, PACCH:0]
 TBF{NEW}: state_chg to ASSIGN
-TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) Starting timer X2001 [assignment (PACCH)] with 2 sec. 0 microsec
+TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) Starting timer X2001 [assignment (PACCH)] with 2 sec. 0 microsec
 UL_ASS_TBF{NONE}: Received Event SCHED_ASS_REJ
 UL_ASS_TBF{NONE}: state_chg to SEND_ASS_REJ
 UL_ASS_TBF{SEND_ASS_REJ}: Received Event CREATE_RLCMAC_MSG
 UL_ASS_TBF{SEND_ASS_REJ}: state_chg to NONE
-TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) starting timer X2000 [reject (PACCH)] with 0 sec. 0 microsec
-PDCH(bts=0,trx=0,ts=7) FN=2654218 Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
+TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) starting timer X2000 [reject (PACCH)] with 0 sec. 0 microsec
+PDCH(bts=0,trx=0,ts=7) FN=2654218 Scheduling control message at RTS for TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
 UL_ASS_TBF{NONE}: Timeout of X2000
-TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) free
-MS(TLLI=0xffeeddcc, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
+TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) free
+MS(TLLI=0xffeeddcc, IMSI=, TA=220, 0/0,) Detaching TBF: TBF(TFI=-1 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
 MS(TLLI=0xffeeddcc, IMSI=, TA=220, 0/0,) Destroying MS object
 ********** UL-TBF ends here **********
 UL_ACK_TBF{NONE}: Deallocated
diff --git a/tests/ulc/PdchUlcTest.err b/tests/ulc/PdchUlcTest.err
index d122f31..411c3f3 100644
--- a/tests/ulc/PdchUlcTest.err
+++ b/tests/ulc/PdchUlcTest.err
@@ -5,42 +5,42 @@
 PDCH(bts=0,trx=0,ts=0) Trying to release unregistered SBA (FN=78, TA=0)
 PDCH(bts=0,trx=0,ts=0) Timeout for registered SBA (FN=72, TA=0)
 Creating MS object, TLLI = 0x12345678
-MS(TLLI=0x12345678, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+MS(TLLI=0x12345678, IMSI=, TA=220, 0/0,) Attaching DL TBF: TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=2715613 but previous FN=2715608 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715608, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715613, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715608, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715613, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715617 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715617, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715617, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715622 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715622, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715622, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715626 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715626, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715626, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715630 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715630, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715630, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715635 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715635, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715635, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715639 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715639, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715639, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=2715643 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715643, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=2715643, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=4 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=4, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=4, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=8 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=8, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=8, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=13 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=13, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=13, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=17 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=17, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=17, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=21 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=21, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=21, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=26 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=26, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=26, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=30 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=30, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=30, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=34 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=34, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=34, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) Expiring FN=43 but previous FN=39 is still reserved!
-PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=39, reason=UL_ASS): TBF(TFI=0 TLLI=0x12345678 DIR=DL STATE=NEW)
+PDCH(bts=0,trx=0,ts=0) Timeout for registered POLL (FN=39, reason=UL_ASS): TBF(TFI=-1 TLLI=0x12345678 DIR=DL STATE=NEW)
 PDCH(bts=0,trx=0,ts=0) POLL scheduled at FN 26 + 13 = 39
 PDCH(bts=0,trx=0,ts=0) UL block already scheduled at FN 91 + 13 = 104
 PDCH(bts=0,trx=0,ts=0) POLL scheduled at FN 91 + 17 = 108