diff --git a/coreapi/private.h b/coreapi/private.h
index a0fbbf550..14665b01b 100644
--- a/coreapi/private.h
+++ b/coreapi/private.h
@@ -415,8 +415,6 @@ void linphone_call_notify_info_message_received(LinphoneCall *call, const Linpho
 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params, LinphoneProxyConfig *cfg);
 LinphoneCall * linphone_call_new_incoming(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op);
 void _linphone_call_set_new_params(LinphoneCall *call, const LinphoneCallParams *params);
-LINPHONE_PUBLIC void linphone_call_set_params(LinphoneCall *call, const LinphoneCallParams *params);
-LINPHONE_PUBLIC const LinphoneCallParams * linphone_call_get_params(LinphoneCall *call);
 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message);
 void linphone_call_set_contact_op(LinphoneCall* call);
 void linphone_call_set_compatible_incoming_call_parameters(LinphoneCall *call, SalMediaDescription *md);
diff --git a/include/linphone/call.h b/include/linphone/call.h
index 074bca2c7..7ef92c41a 100644
--- a/include/linphone/call.h
+++ b/include/linphone/call.h
@@ -873,6 +873,26 @@ LINPHONE_PUBLIC void linphone_call_remove_callbacks(LinphoneCall *call, Linphone
  */
 LINPHONE_PUBLIC LinphoneCallCbs *linphone_call_get_current_callbacks(const LinphoneCall *call);
 
+/**
+ * Set call parameters - advanced and not recommended feature - use with caution.
+ * Local call parameters applicable to an outgoing or incoming shall usually be passed to linphone_core_invite_address_with_params() or 
+ * linphone_call_accept_with_params().
+ * However, in some cases it might be desirable from a software design standpoint to modify local parameters outside of the application layer, typically
+ * in the purpose of implementing a custom logic including special headers in INVITE or 200Ok requests, driven by a call_state_changed listener method.
+ * This function accepts to assign a new LinphoneCallParams only in LinphoneCallOutgoingInit and LinphoneCallIncomingReceived states.
+ * @param call the LinphoneCall object
+**/
+LINPHONE_PUBLIC void linphone_call_set_params(LinphoneCall *call, const LinphoneCallParams *params);
+
+/**
+ * Returns local parameters associated with the call.
+ * This is typically the parameters passed at call initiation to linphone_core_invite_address_with_params() or linphone_call_accept_with_params(), or some default
+ * parameters if no LinphoneCallParams was explicitely passed during call initiation.
+ * @param call the LinphoneCall object
+ * @return the call's local parameters.
+ **/
+LINPHONE_PUBLIC const LinphoneCallParams * linphone_call_get_params(LinphoneCall *call);
+
 /**
  * @}
  */
diff --git a/include/linphone/core.h b/include/linphone/core.h
index c7feb4398..b4085350f 100644
--- a/include/linphone/core.h
+++ b/include/linphone/core.h
@@ -5189,6 +5189,7 @@ LINPHONE_PUBLIC LinphonePresenceService * linphone_core_create_presence_service(
 /**
  * Notifies the upper layer that a presence status has been received by calling the appropriate
  * callback if one has been set.
+ * This method is for advanced usage, where customization of the liblinphone's internal behavior is required.
  * @param[in]  lc the #LinphoneCore object.
  * @param[in]  lf the #LinphoneFriend whose presence information has been received.
  */
@@ -5198,6 +5199,7 @@ LINPHONE_PUBLIC void linphone_core_notify_notify_presence_received(LinphoneCore
 /**
  * Notifies the upper layer that a presence model change has been received for the uri or
  * telephone number given as a parameter, by calling the appropriate callback if one has been set.
+ * This method is for advanced usage, where customization of the liblinphone's internal behavior is required.
  * @param[in]  lc  the #LinphoneCore object.
  * @param[in]  lf  the #LinphoneFriend whose presence information has been received.
  * @param[in]  uri_or_tel  telephone number or sip uri