diff --git a/epan/sequence_analysis.c b/epan/sequence_analysis.c
index 966617de5f..d061e31b67 100644
--- a/epan/sequence_analysis.c
+++ b/epan/sequence_analysis.c
@@ -193,6 +193,14 @@ static void sequence_analysis_item_free(gpointer data)
     free_address(&seq_item->src_addr);
     free_address(&seq_item->dst_addr);
     if (seq_item->info_ptr) {
+#if 0
+        /* XXX: If seq_item->info_type is GA_INFO_TYPE_RTP, then we need
+         * to free the data, but rtpstream_info_free_* is in libui and
+         * not exported. */
+        if (seq_item->info_type == GA_INFO_TYPE_RTP) {
+            rtpstream_info_free_data((rtpstream_info_t *)seq_item->info_ptr);
+        }
+#endif
         g_free(seq_item->info_ptr);
     }
     g_free(data);
diff --git a/epan/sequence_analysis.h b/epan/sequence_analysis.h
index 393e639041..59913e52db 100644
--- a/epan/sequence_analysis.h
+++ b/epan/sequence_analysis.h
@@ -34,6 +34,12 @@ extern "C" {
 
 #define MAX_NUM_NODES 40
 
+/** defines info types for graph analysis additional information */
+typedef enum _ga_info_type {
+    GA_INFO_TYPE_NONE=0,
+    GA_INFO_TYPE_RTP
+} ga_info_type;
+
 /** defines an entry for the graph analysis */
 typedef struct _seq_analysis_item {
     guint32 frame_number;
@@ -52,7 +58,7 @@ typedef struct _seq_analysis_item {
     guint src_node;                     /**< this is used by graph_analysis.c to identify the node */
     guint dst_node;                     /**< a node is an IP address that will be displayed in columns */
     guint16 line_style;                 /**< the arrow line width in pixels*/
-    guint32  info_type;                 /**< type of info for item */
+    ga_info_type info_type;             /**< type of info for item */
     gpointer info_ptr;                  /**< ptr to info for item */
 } seq_analysis_item_t;
 
diff --git a/ui/qt/voip_calls_dialog.cpp b/ui/qt/voip_calls_dialog.cpp
index 9071102609..b8a54bd757 100644
--- a/ui/qt/voip_calls_dialog.cpp
+++ b/ui/qt/voip_calls_dialog.cpp
@@ -327,7 +327,10 @@ void VoipCallsDialog::tapReset(void *tapinfo_ptr)
     VoipCallsDialog *voip_calls_dialog = static_cast<VoipCallsDialog *>(tapinfo->tap_data);
 
     // Create new callsinfos queue in tapinfo. Current callsinfos are
-    // in shown_callsinfos_.
+    // in shown_callsinfos_, so don't free the [shared] data stored in
+    // the queue, but do free the queue itself. (Do this before calling
+    // voip_calls_reset_all_taps(), as that frees the data in the queue.)
+    g_queue_free(voip_calls_dialog->tapinfo_.callsinfos);
     voip_calls_dialog->tapinfo_.callsinfos = g_queue_new();
     voip_calls_reset_all_taps(tapinfo);
 
diff --git a/ui/voip_calls.c b/ui/voip_calls.c
index 62576ddab0..703f4d981a 100644
--- a/ui/voip_calls.c
+++ b/ui/voip_calls.c
@@ -280,7 +280,7 @@ voip_calls_reset_all_taps(voip_calls_tapinfo_t *tapinfo)
     /* free the SIP_HASH */
     if(NULL!=tapinfo->callsinfo_hashtable[SIP_HASH])
     {
-        g_hash_table_remove_all (tapinfo->callsinfo_hashtable[SIP_HASH]);
+        g_hash_table_destroy(tapinfo->callsinfo_hashtable[SIP_HASH]);
         tapinfo->callsinfo_hashtable[SIP_HASH] = NULL;
     }
 
@@ -289,12 +289,15 @@ voip_calls_reset_all_taps(voip_calls_tapinfo_t *tapinfo)
     while(list)
     {
         strinfo = (rtpstream_info_t *)list->data;
-        rtpstream_info_free_data(strinfo);
+        rtpstream_info_free_all(strinfo);
         list = g_list_next(list);
     }
     g_list_free(tapinfo->rtpstream_list);
     tapinfo->rtpstream_list = NULL;
 
+    g_free(tapinfo->sdp_summary);
+    tapinfo->sdp_summary = NULL;
+
     if (tapinfo->h245_labels) {
         memset(tapinfo->h245_labels, 0, sizeof(h245_labels_t));
     }
diff --git a/ui/voip_calls.h b/ui/voip_calls.h
index 97f0824a8d..d2878b7c48 100644
--- a/ui/voip_calls.h
+++ b/ui/voip_calls.h
@@ -140,12 +140,6 @@ typedef struct _skinny_calls_info {
     guint32 callId;
 } skinny_calls_info_t;
 
-/** defines info types for graph analysis additional information */
-typedef enum _ga_info_type {
-    GA_INFO_TYPE_NONE=0,
-    GA_INFO_TYPE_RTP
-} ga_info_type;
-
 /** defines a voip call */
 typedef struct _voip_calls_info {
     voip_call_state         call_state;