diff --git a/src/dmr/lc/csbk/CSBK_MAINT.cpp b/src/dmr/lc/csbk/CSBK_MAINT.cpp
index 042323cc..51acee38 100644
--- a/src/dmr/lc/csbk/CSBK_MAINT.cpp
+++ b/src/dmr/lc/csbk/CSBK_MAINT.cpp
@@ -42,7 +42,8 @@ using namespace dmr;
 /// <summary>
 /// Initializes a new instance of the CSBK_MAINT class.
 /// </summary>
-CSBK_MAINT::CSBK_MAINT() : CSBK()
+CSBK_MAINT::CSBK_MAINT() : CSBK(),
+    m_maintKind(0U)
 {
     m_CSBKO = CSBKO_MAINT;
 }
@@ -65,6 +66,7 @@ bool CSBK_MAINT::decode(const uint8_t* data)
 
     ulong64_t csbkValue = CSBK::toValue(csbk);
 
+    m_maintKind = (uint8_t)(((csbkValue >> 48) & 0xFFU) >> 1);                      // Maintainence Kind
     m_dstId = (uint32_t)((csbkValue >> 24) & 0xFFFFU);                              // Target Radio Address
     m_srcId = (uint32_t)(csbkValue & 0xFFFFFFU);                                    // Source Radio Address
 
@@ -81,6 +83,7 @@ void CSBK_MAINT::encode(uint8_t* data)
 
     ulong64_t csbkValue = 0U;
 
+    csbkValue = (csbkValue << 3) + (m_maintKind & 0x07U);                           // Maintainence Kind
     csbkValue = (csbkValue << 25) + m_dstId;                                        // Target Radio Address
     csbkValue = (csbkValue << 24) + m_srcId;                                        // Source Radio Address
 
@@ -96,3 +99,18 @@ std::string CSBK_MAINT::toString()
 {
     return std::string("CSBKO_MAINT (Call Maintainence)");
 }
+
+// ---------------------------------------------------------------------------
+//  Private Class Members
+// ---------------------------------------------------------------------------
+
+/// <summary>
+/// Internal helper to copy the the class.
+/// </summary>
+/// <param name="data"></param>
+void CSBK_MAINT::copy(const CSBK_MAINT& data)
+{
+    CSBK::copy(data);
+
+    m_maintKind = data.m_maintKind;
+}
diff --git a/src/dmr/lc/csbk/CSBK_MAINT.h b/src/dmr/lc/csbk/CSBK_MAINT.h
index ac1fb9ff..6184f9bd 100644
--- a/src/dmr/lc/csbk/CSBK_MAINT.h
+++ b/src/dmr/lc/csbk/CSBK_MAINT.h
@@ -52,6 +52,12 @@ namespace dmr
 
                 /// <summary>Returns a string that represents the current CSBK.</summary>
                 virtual std::string toString() override;
+            
+            public:
+                /// <summary>Maintainence Kind.</summary>
+                __PROPERTY(uint8_t, maintKind, MaintKind);
+
+                __COPY(CSBK_MAINT);
             };
         } // namespace csbk
     } // namespace lc
diff --git a/src/dmr/packet/ControlSignaling.cpp b/src/dmr/packet/ControlSignaling.cpp
index 5a84735c..50a69815 100644
--- a/src/dmr/packet/ControlSignaling.cpp
+++ b/src/dmr/packet/ControlSignaling.cpp
@@ -351,6 +351,15 @@ bool ControlSignaling::process(uint8_t* data, uint32_t len)
             VERBOSE_LOG_CSBK(csbk->toString(), srcId, dstId);
         }
         break;
+        case CSBKO_MAINT:
+        {
+            CSBK_MAINT* isp = static_cast<CSBK_MAINT*>(csbk.get());
+            if (m_verbose) {
+                LogMessage(LOG_RF, "DMR Slot %u, DT_CSBK, %s, kind = $%02X, srcId = %u",
+                    m_slot->m_slotNo, csbk->toString().c_str(), isp->getMaintKind(), srcId);
+            }
+        }
+        break;
         case CSBKO_PRECCSBK:
         {
             if (m_verbose) {