ModemManager can not detect end of incoming call. Bug?

[Anton Nikolaev]

When call ended by other side -- modem sends STOPRING. But this ring's
state not changed to 'terminated'.

Mmcli shows version 1.6.4
modem is usb zte mf 180

Bug?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/modemmanager-devel/attachments/20200824/349497d5/attachment.htm>