diff --git a/src/chat/basic-chat-room.cpp b/src/chat/basic-chat-room.cpp
index a83535d03..0fe854161 100644
--- a/src/chat/basic-chat-room.cpp
+++ b/src/chat/basic-chat-room.cpp
@@ -44,6 +44,10 @@ void BasicChatRoom::addParticipants (const list<Address> &addresses, const CallS
 	lError() << "addParticipants() is not allowed on a BasicChatRoom";
 }
 
+bool BasicChatRoom::canHandleParticipants () const {
+	return false;
+}
+
 const string& BasicChatRoom::getId () const {
 	L_D(const BasicChatRoom);
 	lError() << "a BasicChatRoom does not have a conference id";
diff --git a/src/chat/basic-chat-room.h b/src/chat/basic-chat-room.h
index 3c696c67d..4f6ec7d50 100644
--- a/src/chat/basic-chat-room.h
+++ b/src/chat/basic-chat-room.h
@@ -41,6 +41,7 @@ public:
 	/* ConferenceInterface */
 	std::shared_ptr<Participant> addParticipant (const Address &addr, const CallSessionParams *params, bool hasMedia);
 	void addParticipants (const std::list<Address> &addresses, const CallSessionParams *params, bool hasMedia);
+	bool canHandleParticipants () const;
 	const std::string& getId () const;
 	int getNbParticipants () const;
 	std::list<std::shared_ptr<Participant>> getParticipants () const;
diff --git a/src/chat/client-group-chat-room.cpp b/src/chat/client-group-chat-room.cpp
index 47ad6a2e5..2181a5b0e 100644
--- a/src/chat/client-group-chat-room.cpp
+++ b/src/chat/client-group-chat-room.cpp
@@ -54,6 +54,10 @@ void ClientGroupChatRoom::addParticipants (const list<Address> &addresses, const
 	// TODO
 }
 
+bool ClientGroupChatRoom::canHandleParticipants () const {
+	return true;
+}
+
 const string& ClientGroupChatRoom::getId () const {
 	return id;
 }
diff --git a/src/chat/client-group-chat-room.h b/src/chat/client-group-chat-room.h
index b32d5951f..849af656e 100644
--- a/src/chat/client-group-chat-room.h
+++ b/src/chat/client-group-chat-room.h
@@ -42,6 +42,7 @@ public:
 	/* ConferenceInterface */
 	std::shared_ptr<Participant> addParticipant (const Address &addr, const CallSessionParams *params, bool hasMedia);
 	void addParticipants (const std::list<Address> &addresses, const CallSessionParams *params, bool hasMedia);
+	bool canHandleParticipants () const;
 	const std::string& getId () const;
 	int getNbParticipants () const;
 	std::list<std::shared_ptr<Participant>> getParticipants () const;
diff --git a/src/chat/real-time-text-chat-room.cpp b/src/chat/real-time-text-chat-room.cpp
index 2f352f3d8..91b9fcf13 100644
--- a/src/chat/real-time-text-chat-room.cpp
+++ b/src/chat/real-time-text-chat-room.cpp
@@ -149,6 +149,10 @@ void RealTimeTextChatRoom::addParticipants (const list<Address> &addresses, cons
 	lError() << "addParticipants() is not allowed on a RealTimeTextChatRoom";
 }
 
+bool RealTimeTextChatRoom::canHandleParticipants () const {
+	return false;
+}
+
 const string& RealTimeTextChatRoom::getId () const {
 	L_D(const RealTimeTextChatRoom);
 	lError() << "a RealTimeTextChatRoom does not have a conference id";
diff --git a/src/chat/real-time-text-chat-room.h b/src/chat/real-time-text-chat-room.h
index 949691722..a75f08d67 100644
--- a/src/chat/real-time-text-chat-room.h
+++ b/src/chat/real-time-text-chat-room.h
@@ -45,6 +45,7 @@ public:
 	/* ConferenceInterface */
 	std::shared_ptr<Participant> addParticipant (const Address &addr, const CallSessionParams *params, bool hasMedia);
 	void addParticipants (const std::list<Address> &addresses, const CallSessionParams *params, bool hasMedia);
+	bool canHandleParticipants () const;
 	const std::string& getId () const;
 	int getNbParticipants () const;
 	std::list<std::shared_ptr<Participant>> getParticipants () const;
diff --git a/src/conference/conference-interface.h b/src/conference/conference-interface.h
index 840675c8c..4cdcb7f32 100644
--- a/src/conference/conference-interface.h
+++ b/src/conference/conference-interface.h
@@ -36,6 +36,7 @@ public:
 
 	virtual std::shared_ptr<Participant> addParticipant (const Address &addr, const CallSessionParams *params, bool hasMedia) = 0;
 	virtual void addParticipants (const std::list<Address> &addresses, const CallSessionParams *params, bool hasMedia) = 0;
+	virtual bool canHandleParticipants () const = 0;
 	virtual const std::string& getId () const = 0;
 	virtual int getNbParticipants () const = 0;
 	virtual std::list<std::shared_ptr<Participant>> getParticipants () const = 0;
diff --git a/src/conference/conference.cpp b/src/conference/conference.cpp
index 1d9e6666c..cca7d4cbf 100644
--- a/src/conference/conference.cpp
+++ b/src/conference/conference.cpp
@@ -49,6 +49,10 @@ void Conference::addParticipants (const list<Address> &addresses, const CallSess
 	// TODO
 }
 
+bool Conference::canHandleParticipants () const {
+	return true;
+}
+
 const string& Conference::getId () const {
 	return id;
 }
diff --git a/src/conference/conference.h b/src/conference/conference.h
index 6f4886ff0..5c22f918f 100644
--- a/src/conference/conference.h
+++ b/src/conference/conference.h
@@ -52,6 +52,7 @@ public:
 	/* ConferenceInterface */
 	virtual std::shared_ptr<Participant> addParticipant (const Address &addr, const CallSessionParams *params, bool hasMedia);
 	virtual void addParticipants (const std::list<Address> &addresses, const CallSessionParams *params, bool hasMedia);
+	virtual bool canHandleParticipants () const;
 	virtual const std::string& getId () const;
 	virtual int getNbParticipants () const;
 	virtual std::list<std::shared_ptr<Participant>> getParticipants () const;