webrtc-config-setting is just 'webrtc_instance'

deltachat-ffi/deltachat.h

@@ -318,11 +318,9 @@ char*           dc_get_blobdir               (const dc_context_t* context);
  *                    The library uses the `media_quality` setting to use different defaults
  *                    for recoding images sent with type DC_MSG_IMAGE.
  *                    If needed, recoding other file types is up to the UI.
- * - `basic_webrtc_instance` = address to webrtc signaling server (https://github.com/cracker0dks/basicwebrtc)
- *                    that should be used for opening video hangouts.
- *                    This property is only used in the UIs not by the core itself.
- *                    Format: https://example.com/subdir
- *                    The other properties that are needed for a call such as the roomname will be set by the client in the anchor part of the url.
+ * - `webrtc_instance` = address to webrtc instance to use for videochats,
+ *                    eg. a server as of https://github.com/cracker0dks/basicwebrtc.
+ *                    Format: https://example.com/subdir#roomname=$ROOM
  *
  * If you want to retrieve a value, use dc_get_config().
  *
@@ -842,7 +840,7 @@ uint32_t        dc_send_text_msg             (dc_context_t* context, uint32_t ch
 /**
  * Send invitation to a videochat.
  *
- * This function reads the `basic_webrtc_instance` config value,
+ * This function reads the `webrtc_instance` config value,
  * may check that the server is working in some way
  * and creates a unique room for this chat, if needed doing a TOKEN roundtrip for that.
  *