diff --git a/src/dmr/lookups/DMRAffiliationLookup.cpp b/src/dmr/lookups/DMRAffiliationLookup.cpp
index da906e1b..84a36c3e 100644
--- a/src/dmr/lookups/DMRAffiliationLookup.cpp
+++ b/src/dmr/lookups/DMRAffiliationLookup.cpp
@@ -63,8 +63,9 @@ DMRAffiliationLookup::~DMRAffiliationLookup()
 /// <param name="dstId"></param>
 /// <param name="srcId"></param>
 /// <param name="grantTimeout"></param>
+/// <param name="netGranted"></param>
 /// <returns></returns>
-bool DMRAffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout)
+bool DMRAffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout, bool netGranted)
 {
     uint32_t chNo = m_rfChTable.at(0);
     uint8_t slot = getAvailableSlotForChannel(chNo);
@@ -73,7 +74,7 @@ bool DMRAffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t gran
         return false;
     }
 
-    return grantChSlot(dstId, srcId, slot, grantTimeout);
+    return grantChSlot(dstId, srcId, slot, grantTimeout, netGranted);
 }
 
 /// <summary>
@@ -83,8 +84,9 @@ bool DMRAffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t gran
 /// <param name="srcId"></param>
 /// <param name="slot"></param>
 /// <param name="grantTimeout"></param>
+/// <param name="netGranted"></param>
 /// <returns></returns>
-bool DMRAffiliationLookup::grantChSlot(uint32_t dstId, uint32_t srcId, uint8_t slot, uint32_t grantTimeout)
+bool DMRAffiliationLookup::grantChSlot(uint32_t dstId, uint32_t srcId, uint8_t slot, uint32_t grantTimeout, bool netGranted)
 {
     if (dstId == 0U) {
         return false;
@@ -109,6 +111,8 @@ bool DMRAffiliationLookup::grantChSlot(uint32_t dstId, uint32_t srcId, uint8_t s
     m_grantChSlotTable[dstId] = std::make_tuple(chNo, slot);
     m_rfGrantChCnt++;
 
+    m_netGrantedTable[dstId] = netGranted;
+
     m_grantTimers[dstId] = Timer(1000U, grantTimeout);
     m_grantTimers[dstId].start();
 
@@ -166,6 +170,7 @@ bool DMRAffiliationLookup::releaseGrant(uint32_t dstId, bool releaseAll)
         m_grantChTable.erase(dstId);
         m_grantSrcIdTable.erase(dstId);
         m_grantChSlotTable.erase(dstId);
+        m_netGrantedTable.erase(dstId);
 
         auto it = std::find(m_rfChTable.begin(), m_rfChTable.end(), chNo);
         if (it == m_rfChTable.end()) {
diff --git a/src/dmr/lookups/DMRAffiliationLookup.h b/src/dmr/lookups/DMRAffiliationLookup.h
index 72f59409..0809681d 100644
--- a/src/dmr/lookups/DMRAffiliationLookup.h
+++ b/src/dmr/lookups/DMRAffiliationLookup.h
@@ -49,9 +49,9 @@ namespace dmr
             virtual ~DMRAffiliationLookup();
 
             /// <summary>Helper to grant a channel.</summary>
-            bool grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout) override;
+            bool grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout, bool netGranted) override;
             /// <summary>Helper to grant a channel and slot.</summary>
-            bool grantChSlot(uint32_t dstId, uint32_t srcId, uint8_t slot, uint32_t grantTimeout);
+            bool grantChSlot(uint32_t dstId, uint32_t srcId, uint8_t slot, uint32_t grantTimeout, bool netGranted);
             /// <summary>Helper to release the channel grant for the destination ID.</summary>
             bool releaseGrant(uint32_t dstId, bool releaseAll) override;
             /// <summary>Helper to determine if the channel number is busy.</summary>
diff --git a/src/dmr/packet/ControlSignaling.cpp b/src/dmr/packet/ControlSignaling.cpp
index 99c29969..92e0b95a 100644
--- a/src/dmr/packet/ControlSignaling.cpp
+++ b/src/dmr/packet/ControlSignaling.cpp
@@ -861,7 +861,7 @@ bool ControlSignaling::writeRF_CSBK_Grant(uint32_t srcId, uint32_t dstId, uint8_
                 }
             }
             else {
-                if (m_tscc->m_affiliations->grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT)) {
+                if (m_tscc->m_affiliations->grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT, net)) {
                     chNo = m_tscc->m_affiliations->getGrantedCh(dstId);
                     slot = m_tscc->m_affiliations->getGrantedSlot(dstId);
                     //m_tscc->m_siteData.setChCnt(m_tscc->m_affiliations->getRFChCnt() + m_tscc->m_affiliations->getGrantedRFChCnt());
@@ -1150,7 +1150,7 @@ bool ControlSignaling::writeRF_CSBK_Data_Grant(uint32_t srcId, uint32_t dstId, u
                 }
             }
             else {
-                if (m_tscc->m_affiliations->grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT)) {
+                if (m_tscc->m_affiliations->grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT, net)) {
                     chNo = m_tscc->m_affiliations->getGrantedCh(dstId);
                     slot = m_tscc->m_affiliations->getGrantedSlot(dstId);
 
diff --git a/src/lookups/AffiliationLookup.cpp b/src/lookups/AffiliationLookup.cpp
index b31f489b..b73f86fb 100644
--- a/src/lookups/AffiliationLookup.cpp
+++ b/src/lookups/AffiliationLookup.cpp
@@ -50,6 +50,7 @@ AffiliationLookup::AffiliationLookup(const char* name, bool verbose) :
     m_grpAffTable(),
     m_grantChTable(),
     m_grantSrcIdTable(),
+    m_netGrantedTable(),
     m_grantTimers(),
     m_releaseGrant(nullptr),
     m_name(name),
@@ -245,8 +246,9 @@ std::vector<uint32_t> AffiliationLookup::clearGroupAff(uint32_t dstId, bool rele
 /// <param name="dstId"></param>
 /// <param name="srcId"></param>
 /// <param name="grantTimeout"></param>
+/// <param name="netGranted"></param>
 /// <returns></returns>
-bool AffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout)
+bool AffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout, bool netGranted)
 {
     if (dstId == 0U) {
         return false;
@@ -264,6 +266,8 @@ bool AffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTi
     m_grantSrcIdTable[dstId] = srcId;
     m_rfGrantChCnt++;
 
+    m_netGrantedTable[dstId] = netGranted;
+
     m_grantTimers[dstId] = Timer(1000U, grantTimeout);
     m_grantTimers[dstId].start();
 
@@ -334,6 +338,7 @@ bool AffiliationLookup::releaseGrant(uint32_t dstId, bool releaseAll)
 
         m_grantChTable.erase(dstId);
         m_grantSrcIdTable.erase(dstId);
+        m_netGrantedTable.erase(dstId);
         m_rfChTable.push_back(chNo);
 
         if (m_rfGrantChCnt > 0U) {
@@ -396,6 +401,26 @@ bool AffiliationLookup::isGranted(uint32_t dstId) const
     }
 }
 
+/// <summary>
+/// Helper to determine if the destination ID is network granted.
+/// </summary>
+/// <param name="dstId"></param>
+/// <returns></returns>
+bool AffiliationLookup::isNetGranted(uint32_t dstId) const
+{
+    if (dstId == 0U) {
+        return false;
+    }
+
+    // lookup dynamic channel grant table entry
+    try {
+        bool net = m_netGrantedTable.at(dstId);
+        return net;
+    } catch (...) {
+        return false;
+    }
+}
+
 /// <summary>
 /// Helper to get the channel granted for the given destination ID.
 /// </summary>
diff --git a/src/lookups/AffiliationLookup.h b/src/lookups/AffiliationLookup.h
index 15967de1..9f4aa99e 100644
--- a/src/lookups/AffiliationLookup.h
+++ b/src/lookups/AffiliationLookup.h
@@ -138,7 +138,7 @@ namespace lookups
         /// <summary>Gets the grant table.</summary>
         std::unordered_map<uint32_t, uint32_t> grantTable() const { return m_grantChTable; }
         /// <summary>Helper to grant a channel.</summary>
-        virtual bool grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout);
+        virtual bool grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTimeout, bool netGranted);
         /// <summary>Helper to start the destination ID grant timer.</summary>
         virtual void touchGrant(uint32_t dstId);
         /// <summary>Helper to release the channel grant for the destination ID.</summary>
@@ -147,6 +147,8 @@ namespace lookups
         virtual bool isChBusy(uint32_t chNo) const;
         /// <summary>Helper to determine if the destination ID is already granted.</summary>
         virtual bool isGranted(uint32_t dstId) const;
+        /// <summary>Helper to determine if the destination ID is granted by network traffic.</summary>
+        virtual bool isNetGranted(uint32_t dstId) const;
         /// <summary>Helper to get the channel granted for the given destination ID.</summary>
         virtual uint32_t getGrantedCh(uint32_t dstId);
         /// <summary>Helper to get the source ID granted for the given destination ID.</summary>
@@ -184,6 +186,7 @@ namespace lookups
 
         std::unordered_map<uint32_t, uint32_t> m_grantChTable;
         std::unordered_map<uint32_t, uint32_t> m_grantSrcIdTable;
+        std::unordered_map<uint32_t, bool> m_netGrantedTable;
         std::unordered_map<uint32_t, Timer> m_grantTimers;
 
         //                 chNo      dstId     slot
diff --git a/src/nxdn/packet/ControlSignaling.cpp b/src/nxdn/packet/ControlSignaling.cpp
index f8e23bae..191cd2d3 100644
--- a/src/nxdn/packet/ControlSignaling.cpp
+++ b/src/nxdn/packet/ControlSignaling.cpp
@@ -563,7 +563,7 @@ bool ControlSignaling::writeRF_Message_Grant(uint32_t srcId, uint32_t dstId, uin
                 }
             }
             else {
-                if (m_nxdn->m_affiliations.grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT)) {
+                if (m_nxdn->m_affiliations.grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT, net)) {
                     chNo = m_nxdn->m_affiliations.getGrantedCh(dstId);
                 }
             }
diff --git a/src/p25/packet/ControlSignaling.cpp b/src/p25/packet/ControlSignaling.cpp
index 7611986a..68f058ed 100644
--- a/src/p25/packet/ControlSignaling.cpp
+++ b/src/p25/packet/ControlSignaling.cpp
@@ -2190,7 +2190,7 @@ bool ControlSignaling::writeRF_TSDU_Grant(uint32_t srcId, uint32_t dstId, uint8_
                 }
             }
             else {
-                if (m_p25->m_affiliations.grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT)) {
+                if (m_p25->m_affiliations.grantCh(dstId, srcId, GRANT_TIMER_TIMEOUT, net)) {
                     chNo = m_p25->m_affiliations.getGrantedCh(dstId);
                     m_p25->m_siteData.setChCnt(m_p25->m_affiliations.getRFChCnt() + m_p25->m_affiliations.getGrantedRFChCnt());
                 }
@@ -2449,7 +2449,7 @@ bool ControlSignaling::writeRF_TSDU_SNDCP_Grant(uint32_t srcId, uint32_t dstId,
                 return false;
             }
             else {
-                if (m_p25->m_affiliations.grantCh(srcId, srcId, GRANT_TIMER_TIMEOUT)) {
+                if (m_p25->m_affiliations.grantCh(srcId, srcId, GRANT_TIMER_TIMEOUT, net)) {
                     uint32_t chNo = m_p25->m_affiliations.getGrantedCh(srcId);
                     osp->setGrpVchNo(chNo);
                     osp->setDataChnNo(chNo);