diff --git a/db_scripts/diff/15652.down b/db_scripts/diff/15652.down
new file mode 100644
index 00000000..1ef5dd11
--- /dev/null
+++ b/db_scripts/diff/15652.down
@@ -0,0 +1,6 @@
+USE provisioning;
+set autocommit = 0;
+
+DELETE FROM voip_preferences WHERE attribute = "transcode_cn";
+
+commit;
diff --git a/db_scripts/diff/15652.up b/db_scripts/diff/15652.up
new file mode 100644
index 00000000..8053261d
--- /dev/null
+++ b/db_scripts/diff/15652.up
@@ -0,0 +1,25 @@
+use provisioning;
+set autocommit=0;
+
+insert into voip_preferences
+  set
+voip_preference_groups_id = (select id from voip_preference_groups where name="Media Codec Transcoding Options"),
+attribute = "transcode_cn",
+label = "Transcode to comfort noise payload",
+type = 1,
+max_occur = 1,
+usr_pref = 1,
+prof_pref = 1,
+dom_pref = 1,
+peer_pref = 1,
+contract_pref = 0,
+contract_location_pref = 0,
+dev_pref = 0,
+devprof_pref = 0,
+internal = 0,
+expose_to_customer = 0,
+data_type = "boolean",
+read_only = 0,
+description = "Enable detection of silence in received RTP audio and transcode to CN (comfort noise) RTP packets if supported by the peer.";
+
+commit;