sailfishos SIP problem after remote end call termination

during call:
  955 nemo      20   0  370m  20m  12m S 43.1  2.6   1:03.31 voicecall-manag
  953 nemo       9 -11  265m 6360 4120 S 36.0  0.8   0:58.90 pulseaudio
28424 root      20   0     0    0    0 S  2.3  0.0   0:07.82 kworker/0:2
 1356 nemo      20   0  209m  64m  41m S  1.9  7.9   0:55.75 voicecall-ui
29160 root      20   0     0    0    0 S  1.9  0.0   0:00.64 kworker/1:0
28968 root      20   0  2720 1184  820 R  1.6  0.1   0:03.51 top
  859 root      20   0     0    0    0 S  1.3  0.0   0:41.37 TX_Thread
  860 root      20   0     0    0    0 S  1.0  0.0   0:12.44 RX_Thread
  511 system    20   0  2264  368  320 S  0.6  0.0   0:30.05 sensord
  958 nemo      20   0  387m 107m  69m S  0.6 13.2   4:30.12 lipstick
  767 root      20   0  7428 3504 2024 S  0.3  0.4   1:28.61 connmand
  890 nemo      20   0  4880 2704 1104 S  0.3  0.3   0:18.57 dbus-daemon
22341 nemo      20   0  7764 2812  876 S  0.3  0.3   1:22.14 screen
27023 root      20   0     0    0    0 S  0.3  0.0   0:00.68 kworker/u:1
27510 nemo      20   0  2492 1040  720 S  0.3  0.1   0:11.05 dbus-monitor

after remote terminates call:
  955 nemo      20   0  370m  20m  12m R 44.0  2.6   1:33.77 voicecall-manag
  958 nemo      20   0  388m 107m  70m S 38.2 13.3   4:35.59 lipstick
  953 nemo       9 -11  201m 6360 4120 S 23.1  0.8   1:23.02 pulseaudio
 1356 nemo      20   0  209m  64m  41m R 17.0  7.9   0:59.32 voicecall-ui
  182 root      20   0 26476 3512 3204 S 16.0  0.4   0:46.08 systemd-journal
  890 nemo      20   0  4880 2704 1104 S 13.8  0.3   0:20.73 dbus-daemon
27510 nemo      20   0  2492 1040  720 S 11.9  0.1   0:12.82 dbus-monitor
22341 nemo      20   0  7764 2812  876 S  8.0  0.3   1:23.59 screen
29126 nemo      20   0 10780 4576 3940 S  7.4  0.6   0:01.32 telepathy-rakia
  560 dbus      20   0  4404 2716 1156 S  4.5  0.3   1:22.53 dbus-daemon
  763 root      20   0 25912 3072 2540 S  3.5  0.4   4:41.45 mce
28968 root      20   0  2720 1184  820 R  1.3  0.1   0:04.40 top

"Problem with network" floods dbus until "killall telepathy-rakia":

method return sender=:1.27 -> dest=:1.55 reply_serial=23199
   uint32 8399
method call sender=:1.55 -> dest=org.freedesktop.Notifications serial=23200 path=/org/freedesktop/Notifications; interface=org.freedesktop.Notifications; member=Notify
   string "voicecall-ui"
   uint32 8399
   string ""
   string ""
   string ""
   array [
      string "default"
      string ""
   ]
   array [
      dict entry(
         string "x-nemo-preview-body"
         variant             string "Problem with network"
      )
      dict entry(
         string "category"
         variant             string "x-jolla.voicecall"
      )
   ]
   int32 -1