Is there any specific list of things that still has to be done before voice calls are more or less functional for the N900? I looked around the Gitlab but could

Is there any specific list of things that still has to be done before voice calls are more or less functional for the N900? I looked around the Gitlab but couldn't seem to locate anything. The wiki[0] mentions a requirement of "libcmtspeechdata" but there doesn't seem to be any other information beyond that. [0] https://wiki.postmarketos.org/wiki/Nokia_N900#Additional_info https://wiki.postmarketos.org/wiki/Nokia_N900#Additional_inf...