diff --git a/doc/contributions.txt b/doc/contributions.txt
index 3f7f7207f3b619a0a46e862bf1558f413a9dc302..ede0018b9958c3cb90dd38fc5e0b5388817a6bdf 100644
--- a/doc/contributions.txt
+++ b/doc/contributions.txt
@@ -597,6 +597,7 @@ Jonathan Yap
 	STORM-1712
 	STORM-1728
 	STORM-1736
+	STORM-1731
 	STORM-1733
 Kadah Coba
 	STORM-1060
diff --git a/indra/newview/llimview.cpp b/indra/newview/llimview.cpp
index ed4bb727cd77043c0baebad5c881c37614df6420..a856bd0bdc67bc719de33db922238dd199241c29 100644
--- a/indra/newview/llimview.cpp
+++ b/indra/newview/llimview.cpp
@@ -2403,15 +2403,6 @@ void LLIMMgr::addMessage(
 	bool link_name) // If this is true, then we insert the name and link it to a profile
 {
 	LLUUID other_participant_id = target_id;
-
-	// don't process muted IMs
-	if (LLMuteList::getInstance()->isMuted(
-			other_participant_id,
-			LLMute::flagTextChat) && !LLMuteList::getInstance()->isLinden(from))
-	{
-		return;
-	}
-
 	LLUUID new_session_id = session_id;
 	if (new_session_id.isNull())
 	{
@@ -2452,10 +2443,25 @@ void LLIMMgr::addMessage(
 			LLIMModel::instance().addMessage(new_session_id, from, other_participant_id, bonus_info.str());
 		}
 
+		// Logically it would make more sense to reject the session sooner, in another area of the
+		// code, but the session has to be established inside the server before it can be left.
+		if (LLMuteList::getInstance()->isMuted(other_participant_id) && !LLMuteList::getInstance()->isLinden(from))
+		{
+			llwarns << "Leaving IM session from initiating muted resident " << from << llendl;
+			if(!gIMMgr->leaveSession(new_session_id))
+			{
+				llinfos << "Session " << new_session_id << " does not exist." << llendl;
+			}
+			return;
+		}
+
 		make_ui_sound("UISndNewIncomingIMSession");
 	}
 
-	LLIMModel::instance().addMessage(new_session_id, from, other_participant_id, msg);
+	if (!LLMuteList::getInstance()->isMuted(other_participant_id, LLMute::flagTextChat))
+	{
+		LLIMModel::instance().addMessage(new_session_id, from, other_participant_id, msg);
+	}
 }
 
 void LLIMMgr::addSystemMessage(const LLUUID& session_id, const std::string& message_name, const LLSD& args)
@@ -2661,18 +2667,15 @@ void LLIMMgr::inviteToSession(
 	const std::string& session_handle,
 	const std::string& session_uri)
 {
-	//ignore invites from muted residents
-	if (LLMuteList::getInstance()->isMuted(caller_id))
-	{
-		return;
-	}
-
 	std::string notify_box_type;
 	// voice invite question is different from default only for group call (EXT-7118)
 	std::string question_type = "VoiceInviteQuestionDefault";
 
 	BOOL ad_hoc_invite = FALSE;
 	BOOL voice_invite = FALSE;
+	bool is_linden = LLMuteList::getInstance()->isLinden(caller_name);
+
+
 	if(type == IM_SESSION_P2P_INVITE)
 	{
 		//P2P is different...they only have voice invitations
@@ -2711,7 +2714,18 @@ void LLIMMgr::inviteToSession(
 	payload["session_uri"] = session_uri;
 	payload["notify_box_type"] = notify_box_type;
 	payload["question_type"] = question_type;
-	
+
+	//ignore invites from muted residents
+	if (LLMuteList::getInstance()->isMuted(caller_id) && !is_linden)
+	{
+		if (voice_invite && "VoiceInviteQuestionDefault" == question_type)
+		{
+			llinfos << "Rejecting voice call from initiating muted resident " << caller_name << llendl;
+			LLIncomingCallDialog::processCallResponse(1, payload);
+		}
+		return;
+	}
+
 	LLVoiceChannel* channelp = LLVoiceChannel::getChannelByID(session_id);
 	if (channelp && channelp->callStarted())
 	{
@@ -3234,7 +3248,7 @@ class LLViewerChatterBoxInvitation : public LLHTTPNode
 			chat.mFromID = from_id;
 			chat.mFromName = name;
 
-			if (!is_linden && (is_busy || is_muted))
+			if (!is_linden && is_busy)
 			{
 				return;
 			}
@@ -3266,6 +3280,11 @@ class LLViewerChatterBoxInvitation : public LLHTTPNode
 				ll_vector3_from_sd(message_params["position"]),
 				true);
 
+			if (LLMuteList::getInstance()->isMuted(from_id, name, LLMute::flagTextChat))
+			{
+				return;
+			}
+
 			//K now we want to accept the invitation
 			std::string url = gAgent.getRegion()->getCapability(
 				"ChatSessionRequest");