* Create a #LinphoneCallParams suitable for linphone_core_invite_with_params(), linphone_core_accept_call_with_params(), linphone_core_accept_early_media_with_params(),
* Create a #LinphoneCallParams suitable for linphone_core_invite_with_params(), linphone_core_accept_call_with_params(),
* linphone_core_accept_call_update().
* linphone_core_accept_early_media_with_params() or linphone_core_accept_call_update().
* The parameters are initialized according to the current #LinphoneCore configuration and the current state of the LinphoneCall.
* The parameters are initialized according to the current #LinphoneCore configuration and the last used local #LinphoneCallParams,
* the ones passed through linphone_call_update(), linphone_call_accept_with_params() or linphone_call_accept_update_with_params().
* @param core #LinphoneCore object
* @param core #LinphoneCore object
* @param call #LinphoneCall for which the parameters are to be build, or NULL in the case where the parameters are to be used for a new outgoing call. @maybenil
* @param call #LinphoneCall for which the parameters are to be build, or NULL in the case where the parameters are to be used for a new outgoing call. @maybenil
* @return A new #LinphoneCallParams object. @maybenil
* @return A new #LinphoneCallParams object. @maybenil