diff --git a/CommonLibs/trx_vty.c b/CommonLibs/trx_vty.c
index 45b58eb..3b1b979 100644
--- a/CommonLibs/trx_vty.c
+++ b/CommonLibs/trx_vty.c
@@ -304,6 +304,21 @@
 	return CMD_SUCCESS;
 }
 
+DEFUN(cfg_ext_rach, cfg_ext_rach_cmd,
+	"ext-rach (disable|enable)",
+	"Enable extended (11-bit) RACH (default=disable)\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (strcmp("disable", argv[0]) == 0)
+		trx->cfg.ext_rach = false;
+
+	if (strcmp("enable", argv[0]) == 0)
+		trx->cfg.ext_rach = true;
+
+	return CMD_SUCCESS;
+}
+
 DEFUN(cfg_rt_prio, cfg_rt_prio_cmd,
 	"rt-prio <1-32>",
 	"Set the SCHED_RR real-time priority\n"
@@ -417,6 +432,7 @@
 		vty_out(vty, " rssi-offset %f%s", trx->cfg.rssi_offset, VTY_NEWLINE);
 	vty_out(vty, " swap-channels %s%s", trx->cfg.swap_channels ? "enable" : "disable", VTY_NEWLINE);
 	vty_out(vty, " egprs %s%s", trx->cfg.egprs ? "enable" : "disable", VTY_NEWLINE);
+	vty_out(vty, " ext-rach %s%s", trx->cfg.ext_rach ? "enable" : "disable", VTY_NEWLINE);
 	if (trx->cfg.sched_rr != 0)
 		vty_out(vty, " rt-prio %u%s", trx->cfg.sched_rr, VTY_NEWLINE);
 
@@ -454,6 +470,7 @@
 	vty_out(vty, " RSSI to dBm offset: %f%s", trx->cfg.rssi_offset, VTY_NEWLINE);
 	vty_out(vty, " Swap channels: %s%s", trx->cfg.swap_channels ? "Enabled" : "Disabled", VTY_NEWLINE);
 	vty_out(vty, " EDGE support: %s%s", trx->cfg.egprs ? "Enabled" : "Disabled", VTY_NEWLINE);
+	vty_out(vty, " Extended RACH support: %s%s", trx->cfg.ext_rach ? "Enabled" : "Disabled", VTY_NEWLINE);
 	vty_out(vty, " Real Time Priority: %u (%s)%s", trx->cfg.sched_rr,
 		trx->cfg.sched_rr ? "Enabled" : "Disabled", VTY_NEWLINE);
 	vty_out(vty, " Channels: %u%s", trx->cfg.num_chans, VTY_NEWLINE);
@@ -564,6 +581,7 @@
 	install_element(TRX_NODE, &cfg_rssi_offset_cmd);
 	install_element(TRX_NODE, &cfg_swap_channels_cmd);
 	install_element(TRX_NODE, &cfg_egprs_cmd);
+	install_element(TRX_NODE, &cfg_ext_rach_cmd);
 	install_element(TRX_NODE, &cfg_rt_prio_cmd);
 	install_element(TRX_NODE, &cfg_filler_cmd);
 
diff --git a/CommonLibs/trx_vty.h b/CommonLibs/trx_vty.h
index c921722..8d251ee 100644
--- a/CommonLibs/trx_vty.h
+++ b/CommonLibs/trx_vty.h
@@ -57,6 +57,7 @@
 		double offset;
 		double rssi_offset;
 		bool swap_channels;
+		bool ext_rach;
 		bool egprs;
 		unsigned int sched_rr;
 		unsigned int num_chans;
diff --git a/Transceiver52M/Transceiver.cpp b/Transceiver52M/Transceiver.cpp
index df1c0bd..cfb36c3 100644
--- a/Transceiver52M/Transceiver.cpp
+++ b/Transceiver52M/Transceiver.cpp
@@ -159,7 +159,8 @@
  * are still expected to report clock indications through control channel
  * activity.
  */
-bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay, bool edge)
+bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay,
+                       bool edge, bool ext_rach)
 {
   int d_srcport, d_dstport, c_srcport, c_dstport;
 
@@ -173,6 +174,7 @@
     return false;
   }
 
+  mExtRACH = ext_rach;
   mEdge = edge;
 
   mDataSockets.resize(mChans);
@@ -497,16 +499,16 @@
     break;
   case IV:
   case VI:
-    return RACH;
+    return mExtRACH ? EXT_RACH : RACH;
     break;
   case V: {
     int mod51 = burstFN % 51;
     if ((mod51 <= 36) && (mod51 >= 14))
-      return RACH;
+      return mExtRACH ? EXT_RACH : RACH;
     else if ((mod51 == 4) || (mod51 == 5))
-      return RACH;
+      return mExtRACH ? EXT_RACH : RACH;
     else if ((mod51 == 45) || (mod51 == 46))
-      return RACH;
+      return mExtRACH ? EXT_RACH : RACH;
     else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]])
       return RACH;
     else
@@ -524,7 +526,7 @@
   case XIII: {
     int mod52 = burstFN % 52;
     if ((mod52 == 12) || (mod52 == 38))
-      return RACH;
+      return mExtRACH ? EXT_RACH : RACH;
     else if ((mod52 == 25) || (mod52 == 51))
       return IDLE;
     else
@@ -635,9 +637,11 @@
     noise = 20.0 * log10(rxFullScale / state->mNoiseLev);
   }
 
+  unsigned max_toa = (type == RACH || type == EXT_RACH) ?
+                      mMaxExpectedDelayAB : mMaxExpectedDelayNB;
+
   /* Detect normal or RACH bursts */
-  rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, amp, toa,
-                      (type==RACH)?mMaxExpectedDelayAB:mMaxExpectedDelayNB);
+  rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, amp, toa, max_toa);
 
   if (rc > 0) {
     type = (CorrType) rc;
diff --git a/Transceiver52M/Transceiver.h b/Transceiver52M/Transceiver.h
index e250adc..432e3b4 100644
--- a/Transceiver52M/Transceiver.h
+++ b/Transceiver52M/Transceiver.h
@@ -114,7 +114,8 @@
   ~Transceiver();
 
   /** Start the control loop */
-  bool init(FillerType filler, size_t rtsc, unsigned rach_delay, bool edge);
+  bool init(FillerType filler, size_t rtsc, unsigned rach_delay,
+            bool edge, bool ext_rach);
 
   /** attach the radioInterface receive FIFO */
   bool receiveFIFO(VectorFIFO *wFIFO, size_t chan)
@@ -210,6 +211,7 @@
   int mSPSRx;                          ///< number of samples per Rx symbol
   size_t mChans;
 
+  bool mExtRACH;
   bool mEdge;
   bool mOn;	                           ///< flag to indicate that transceiver is powered on
   bool mForceClockInterface;           ///< flag to indicate whether IND CLOCK shall be sent unconditionally after transceiver is started
diff --git a/Transceiver52M/osmo-trx.cpp b/Transceiver52M/osmo-trx.cpp
index 0e63020..1f35cd8 100644
--- a/Transceiver52M/osmo-trx.cpp
+++ b/Transceiver52M/osmo-trx.cpp
@@ -144,7 +144,7 @@
 			      trx->cfg.rx_sps, trx->cfg.num_chans, GSM::Time(3,0),
 			      radio, trx->cfg.rssi_offset);
 	if (!transceiver->init(trx->cfg.filler, trx->cfg.rtsc,
-		       trx->cfg.rach_delay, trx->cfg.egprs)) {
+		       trx->cfg.rach_delay, trx->cfg.egprs, trx->cfg.ext_rach)) {
 		LOG(ALERT) << "Failed to initialize transceiver";
 		return -1;
 	}
@@ -408,6 +408,7 @@
 	ost << "   Tx Samples-per-Symbol... " << trx->cfg.tx_sps << std::endl;
 	ost << "   Rx Samples-per-Symbol... " << trx->cfg.rx_sps << std::endl;
 	ost << "   EDGE support............ " << trx->cfg.egprs << std::endl;
+	ost << "   Extended RACH support... " << trx->cfg.ext_rach << std::endl;
 	ost << "   Reference............... " << trx->cfg.clock_ref << std::endl;
 	ost << "   C0 Filler Table......... " << trx->cfg.filler << std::endl;
 	ost << "   Multi-Carrier........... " << trx->cfg.multi_arfcn << std::endl;