diff --git a/src/chat/chat-room/client-group-chat-room.cpp b/src/chat/chat-room/client-group-chat-room.cpp
index 3422a19b7..75e4eb03e 100644
--- a/src/chat/chat-room/client-group-chat-room.cpp
+++ b/src/chat/chat-room/client-group-chat-room.cpp
@@ -59,16 +59,13 @@ shared_ptr<CallSession> ClientGroupChatRoomPrivate::createSession () {
 
 	CallSessionParams csp;
 	csp.addCustomHeader("Require", "recipient-list-invite");
+	csp.addCustomContactParameter("text");
 
 	shared_ptr<Participant> focus = qConference->getPrivate()->focus;
 	shared_ptr<CallSession> session = focus->getPrivate()->createSession(*q, &csp, false, q);
 	const Address &myAddress = q->getMe()->getAddress();
 	session->configure(LinphoneCallOutgoing, nullptr, nullptr, myAddress, focus->getContactAddress());
 	session->initiateOutgoing();
-
-	Address addr = myAddress;
-	addr.setParam("text");
-	session->getPrivate()->getOp()->set_contact_address(addr.getPrivate()->getInternalAddress());
 	return session;
 }
 
diff --git a/src/conference/params/call-session-params-p.h b/src/conference/params/call-session-params-p.h
index e56e0bb26..23e3eb2ed 100644
--- a/src/conference/params/call-session-params-p.h
+++ b/src/conference/params/call-session-params-p.h
@@ -20,6 +20,8 @@
 #ifndef _CALL_SESSION_PARAMS_P_H_
 #define _CALL_SESSION_PARAMS_P_H_
 
+#include <unordered_map>
+
 #include "object/clonable-object-p.h"
 
 #include "call-session-params.h"
@@ -48,6 +50,8 @@ public:
 	SalCustomHeader * getCustomHeaders () const;
 	void setCustomHeaders (const SalCustomHeader *ch);
 
+	const std::unordered_map<std::string, std::string> &getCustomContactParameters () const { return customContactParameters; }
+
 	LinphoneCall *getReferer () const { return referer; }
 	void setReferer (LinphoneCall *call) { referer = call; }
 
@@ -61,6 +65,7 @@ private:
 	bool internalCallUpdate = false;
 	bool noUserConsent = false; /* When set to true an UPDATE request will be used instead of reINVITE */
 	SalCustomHeader *customHeaders = nullptr;
+	std::unordered_map<std::string, std::string> customContactParameters;
 	LinphoneCall *referer = nullptr; /* In case call creation is consecutive to an incoming transfer, this points to the original call */
 
 	L_DECLARE_PUBLIC(CallSessionParams);
diff --git a/src/conference/params/call-session-params.cpp b/src/conference/params/call-session-params.cpp
index 463e490d2..828d5a50d 100644
--- a/src/conference/params/call-session-params.cpp
+++ b/src/conference/params/call-session-params.cpp
@@ -54,6 +54,7 @@ void CallSessionParamsPrivate::clone (const CallSessionParamsPrivate &src, CallS
 	/* The management of the custom headers is not optimal. We copy everything while ref counting would be more efficient. */
 	if (src.customHeaders)
 		dst.customHeaders = sal_custom_header_clone(src.customHeaders);
+	dst.customContactParameters = src.customContactParameters;
 	dst.referer = src.referer;
 }
 
@@ -137,4 +138,28 @@ const char * CallSessionParams::getCustomHeader (const string &headerName) const
 	return sal_custom_header_find(d->customHeaders, headerName.c_str());
 }
 
+// -----------------------------------------------------------------------------
+
+void CallSessionParams::addCustomContactParameter (const std::string &paramName, const std::string &paramValue) {
+	L_D();
+	auto it = d->customContactParameters.find(paramName);
+	if (it != d->customContactParameters.end())
+		d->customContactParameters.erase(it);
+	pair<string, string> param(paramName, paramValue);
+	d->customContactParameters.insert(param);
+}
+
+void CallSessionParams::clearCustomContactParameters () {
+	L_D();
+	d->customContactParameters.clear();
+}
+
+std::string CallSessionParams::getCustomContactParameter (const std::string &paramName) const {
+	L_D();
+	auto it = d->customContactParameters.find(paramName);
+	if (it == d->customContactParameters.end())
+		return "";
+	return it->second;
+}
+
 LINPHONE_END_NAMESPACE
diff --git a/src/conference/params/call-session-params.h b/src/conference/params/call-session-params.h
index 70ed155aa..1d152308f 100644
--- a/src/conference/params/call-session-params.h
+++ b/src/conference/params/call-session-params.h
@@ -56,6 +56,10 @@ public:
 	void clearCustomHeaders ();
 	const char * getCustomHeader (const std::string &headerName) const;
 
+	void addCustomContactParameter (const std::string &paramName, const std::string &paramValue = "");
+	void clearCustomContactParameters ();
+	std::string getCustomContactParameter (const std::string &paramName) const;
+
 protected:
 	explicit CallSessionParams (CallSessionParamsPrivate &p);
 
diff --git a/src/conference/session/call-session.cpp b/src/conference/session/call-session.cpp
index de2e583ee..ccb20d225 100644
--- a/src/conference/session/call-session.cpp
+++ b/src/conference/session/call-session.cpp
@@ -600,9 +600,13 @@ void CallSessionPrivate::updateCurrentParams () const {}
 // -----------------------------------------------------------------------------
 
 void CallSessionPrivate::setContactOp () {
+	L_Q();
 	SalAddress *salAddress = nullptr;
 	LinphoneAddress *contact = getFixedContact();
 	if (contact) {
+		auto contactParams = q->getParams()->getPrivate()->getCustomContactParameters();
+		for (auto it = contactParams.begin(); it != contactParams.end(); it++)
+			linphone_address_set_param(contact, it->first.c_str(), it->second.empty() ? nullptr : it->second.c_str());
 		salAddress = const_cast<SalAddress *>(L_GET_PRIVATE_FROM_C_OBJECT(contact)->getInternalAddress());
 		op->set_contact_address(salAddress);
 		linphone_address_unref(contact);
@@ -652,10 +656,10 @@ LinphoneAddress * CallSessionPrivate::getFixedContact () const {
 		char *addr = sal_address_as_string(pingOp->get_contact_address());
 		result = linphone_address_new(addr);
 		ms_free(addr);
-	} else if (destProxy && destProxy->op && _linphone_proxy_config_get_contact_without_params(destProxy)) {
+	} else if (destProxy && destProxy->op && linphone_proxy_config_get_contact(destProxy)) {
 		/* If using a proxy, use the contact address as guessed with the REGISTERs */
 		lInfo() << "Contact has been fixed using proxy";
-		result = linphone_address_clone(_linphone_proxy_config_get_contact_without_params(destProxy));
+		result = linphone_address_clone(linphone_proxy_config_get_contact(destProxy));
 	} else {
 		result = linphone_core_get_primary_contact_parsed(core);
 		if (result) {