diff --git a/src/dmr_block.c b/src/dmr_block.c
index 893b0e8..e7f9de7 100644
--- a/src/dmr_block.c
+++ b/src/dmr_block.c
@@ -783,6 +783,6 @@ void dmr_reset_blocks (dsd_opts * opts, dsd_state * state)
   //reset some strings -- resetting call string here causes random blink on ncurses terminal (cap+)
   // sprintf (state->call_string[0], "%s", "                     "); //21 spaces
   // sprintf (state->call_string[1], "%s", "                     "); //21 spaces
-  sprintf (state->dmr_lrrp_gps[0], "%s", "");
-  sprintf (state->dmr_lrrp_gps[1], "%s", "");
+  // sprintf (state->dmr_lrrp_gps[0], "%s", ""); //disabled for dmr data call persistence #174
+  // sprintf (state->dmr_lrrp_gps[1], "%s", ""); //disabled for dmr data call persistence #174
 }
\ No newline at end of file
diff --git a/src/dmr_data.c b/src/dmr_data.c
index 3541152..3cae906 100644
--- a/src/dmr_data.c
+++ b/src/dmr_data.c
@@ -267,7 +267,20 @@ dmr_data_sync (dsd_opts * opts, dsd_state * state)
   state->color_code_ok = SlotTypeOk;
 
   //not sure why I still have two variables for this, need to look and see what state->color_code still ties into
-  if (SlotTypeOk == 1) state->dmr_color_code = state->color_code;
+  if (SlotTypeOk == 1) 
+  {
+    if (state->dmr_color_code != state->color_code)
+    {
+      //Zero out values on color code change #174
+      state->lasttg = 0;
+      state->lasttgR =0;
+      state->lastsrc = 0;
+      state->lastsrcR = 0;
+      sprintf (state->dmr_lrrp_gps[0], "%s", "");
+      sprintf (state->dmr_lrrp_gps[1], "%s", "");
+      state->dmr_color_code = state->color_code;
+    }
+  }
 
   /* Reconstitute the burst type */
   burst = (uint8_t)((SlotType[4] << 3) + (SlotType[5] << 2) + (SlotType[6] << 1) + SlotType[7]);
diff --git a/src/dsd_main.c b/src/dsd_main.c
index 5531ef3..5598793 100644
--- a/src/dsd_main.c
+++ b/src/dsd_main.c
@@ -257,10 +257,10 @@ if(opts->frame_m17 == 1) //&& opts->audio_in_type == 5
   //zero out right away if not trunking
   if (opts->p25_trunk == 0)
   {
-    state->lasttg = 0;
-    state->lastsrc = 0;
-    state->lasttgR = 0;
-    state->lastsrcR = 0;
+    // state->lasttg = 0; //disabled for dmr voice call persistence #174
+    // state->lastsrc = 0; //disabled for dmr voice call persistence #174
+    // state->lasttgR = 0; //disabled for dmr voice call persistence #174
+    // state->lastsrcR = 0; //disabled for dmr voice call persistence #174
 
     //zero out vc frequencies?
     state->p25_vc_freq[0] = 0;
@@ -290,10 +290,10 @@ if(opts->frame_m17 == 1) //&& opts->audio_in_type == 5
   //mainly bugfix for ncurses and per call wavs (edacs) and also signal fade, etc
   if (opts->p25_trunk == 1 && opts->p25_is_tuned == 1 && time(NULL) - state->last_cc_sync_time > opts->trunk_hangtime) 
   {
-    state->lasttg = 0;
-    state->lastsrc = 0;
-    state->lasttgR = 0;
-    state->lastsrcR = 0;
+    // state->lasttg = 0; //disabled for dmr voice call persistence #174
+    // state->lastsrc = 0; //disabled for dmr voice call persistence #174
+    // state->lasttgR = 0; //disabled for dmr voice call persistence #174
+    // state->lastsrcR = 0; //disabled for dmr voice call persistence #174
 
   }
     
@@ -431,7 +431,7 @@ if(opts->frame_m17 == 1) //&& opts->audio_in_type == 5
   memset(state->dmr_alias_len, 0, sizeof(state->dmr_alias_len));
   memset(state->dmr_alias_block_segment, 0, sizeof(state->dmr_alias_block_segment));
   memset(state->dmr_embedded_gps, 0, sizeof(state->dmr_embedded_gps));
-  memset(state->dmr_lrrp_gps, 0, sizeof(state->dmr_lrrp_gps));
+  // memset(state->dmr_lrrp_gps, 0, sizeof(state->dmr_lrrp_gps));
 
   // memset(state->active_channel, 0, sizeof(state->active_channel));
 
diff --git a/src/dsd_ncurses.c b/src/dsd_ncurses.c
index 4646e77..e9ecab1 100644
--- a/src/dsd_ncurses.c
+++ b/src/dsd_ncurses.c
@@ -3104,7 +3104,7 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
     }
 
     //LRRP
-    if(state->dmrburstL != 16) //only during data and no trunking
+    // if(state->dmrburstL != 16) //only during data and no trunking //disabled for dmr data call persistence #174
     {
       attron(COLOR_PAIR(4));
       printw  ("%s", state->dmr_lrrp_gps[0]);
@@ -3298,7 +3298,7 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
       }
 
       //LRRP
-      if(state->dmrburstR != 16) //only during data and no trunking
+      // if(state->dmrburstR != 16) //only during data and no trunking //disabled for dmr data call persistence #174
       {
         attron(COLOR_PAIR(4));
         printw  ("%s", state->dmr_lrrp_gps[1]);
@@ -3978,10 +3978,10 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
     dmr_reset_blocks (opts, state);
 
     //zero out additional items
-    state->lasttg = 0;
-    state->lasttgR = 0;
-    state->lastsrc = 0;
-    state->lastsrcR = 0;
+    // state->lasttg = 0; //disabled for dmr voice call persistence #174
+    // state->lasttgR = 0; //disabled for dmr voice call persistence #174
+    // state->lastsrc = 0; //disabled for dmr voice call persistence #174
+    // state->lastsrcR = 0; //disabled for dmr voice call persistence #174
     state->payload_algid = 0;
     state->payload_algidR = 0;
     state->payload_keyid = 0;