ModemManager and Roaming

[Aleksander Morgado]

On Tue, Jul 19, 2016 at 12:57 AM, Ali Nematollahi <alirezan1 at gmail.com> wrote:
> ModemManager[3100]: <debug> [946686725.704970] [mm-port-serial-at.c:440]
> debug_log(): (ttyUSB3): --> 'ATD*99***1#<CR>'
> ModemManager[3100]: <debug> [946686725.732977] [mm-port-serial-at.c:440]
> debug_log(): (ttyUSB3): <-- '<CR><LF>CONNECT<CR><LF>'
> ModemManager[3100]: <debug> [946686725.733962] [mm-port-serial.c:1294]
> _close_internal(): (ttyUSB3) device open count is 1 (close)
> ModemManager[3100]: <debug> [946686725.734971] [mm-port.c:95]
> mm_port_set_connected(): (ttyUSB3): port now connected
> ModemManager[3100]: <debug> [946686725.735756] [mm-base-bearer.c:488]
> connect_ready(): Connected bearer '/org/freedesktop/ModemManager1/Bearer/0'
> ModemManager[3100]: <info>  [946686725.737193] [mm-iface-modem.c:1392]
> __iface_modem_update_state_internal(): Modem
> /org/freedesktop/ModemManager1/Modem/0: state changed (connecting ->
> connected)
> ModemManager[3100]: <info>  [946686725.749835] [mm-iface-modem-simple.c:602]
> connection_step(): Simple connect state (8/8): All done
> ModemManager[3100]: <debug> [946686725.972099] [mm-base-manager.c:296]
> device_added(): (net/ppp0): could not get port's parent device
> ModemManager[3100]: <debug> [946686734.124031] [mm-port-serial-at.c:440]
> debug_log(): (ttyUSB2): <-- '<CR><LF>+CREG: 2<CR><LF>'
> ModemManager[3100]: <info>  [946686734.124519] [mm-iface-modem-3gpp.c:1179]
> update_registration_state(): Modem /org/freedesktop/ModemManager1/Modem/0:
> 3GPP Registration state changed (roaming -> searching)
> ModemManager[3100]: <debug> [946686734.125235]
> [mm-iface-modem-location.c:295] notify_3gpp_location_update(): Modem
> /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '0',
> MNC: '0', Location area code: '3E80', Cell ID: 'E0E0')
> ModemManager[3100]: <debug> [946686734.125981]
> [mm-iface-modem-location.c:295] notify_3gpp_location_update(): Modem
> /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '0',
> MNC: '0', Location area code: '0', Cell ID: '0')
> ModemManager[3100]: <debug> [946686745.722412] [mm-base-bearer.c:760]
> mm_base_bearer_disconnect(): Disconnecting bearer
> '/org/freedesktop/ModemManager1/Bearer/0'
> ModemManager[3100]: <info>  [946686745.722844] [mm-iface-modem.c:1392]
> __iface_modem_update_state_internal(): Modem
> /org/freedesktop/ModemManager1/Modem/0: state changed (connected ->
> disconnecting)

The roaming bit we manage is working, as otherwise you wouldn't  even
be able to see a connection attempt.

What's happening here is that you lost your registration to the
network once connected (see the roaming -> searching step above). This
could be the network kicking you out for some reason?

-- 
Aleksander
https://aleksander.es