I noticed that when I leave my phone on for some time (about a day I would say), it is still logged into the network and can receive messages and calls, but it never rings or vibrates even though its profile is set to "general". This leads to missed calls and late answering to SMS.

Rebooting fixes this, but I do not want to reboot my phone just to have it ring again. Anyone encountered this? I am on thumb and have some software installed (recaller amongst them). Is there a way to periodically restart the GSM subsystem, maybe that would work? Even though ringing is started via DBUS, right, so I would need to restart that.