diff --git a/ipsc/ipsc_message_types.py b/ipsc/ipsc_message_types.py
index 4048872..72bce98 100644
--- a/ipsc/ipsc_message_types.py
+++ b/ipsc/ipsc_message_types.py
@@ -47,7 +47,7 @@ LINK_TYPE_IPSC        = '\x04'
 IPSC_VER              = LINK_TYPE_IPSC + IPSC_VER_19 + LINK_TYPE_IPSC + IPSC_VER_17
 
 # Packets that must originate from a peer (or master peer)
-ANY_PEER_REQUIRED = [GROUP_VOICE, PVT_VOICE, GROUP_DATA, PVT_DATA, CALL_MON_ORIGIN, CALL_MON_RPT, CALL_MON_NACK, XCMP_XNL, RPT_WAKE_UP, DE_REG_REQ]
+ANY_PEER_REQUIRED = [GROUP_VOICE, PVT_VOICE, GROUP_DATA, PVT_DATA, CALL_MON_STATUS, CALL_MON_RPT, CALL_MON_NACK, XCMP_XNL, RPT_WAKE_UP, DE_REG_REQ]
 
 # Packets that must originate from a non-master peer
 PEER_REQUIRED = [PEER_ALIVE_REQ, PEER_ALIVE_REPLY, PEER_REG_REQ, PEER_REG_REPLY]
@@ -122,7 +122,7 @@ REQ_VALID_MASTER = [
 ]
 
 REQ_MASTER_CONNECTED = [
-    CALL_MON_ORIGIN,
+    CALL_MON_STATUS,
     CALL_MON_RPT,
     CALL_MON_NACK,
     XCMP_XNL,