Hi Enrico,

On 05/09/2016 02:43 AM, Enrico Sau wrote:
> ofonod[1306]: Aux: < #QSS: 0\r\n
> ofonod[1306]: 09:33:54|plugins/he910.c[173]:he910_qss_notify() 0x88ef560
> ofonod[1306]: 09:33:54|plugins/he910.c[131]:switch_sim_state_status() 0x88ef560, SIM status: 0
> ofonod[1306]: 09:33:57|src/modem.c[496]:modem_change_state() old state: 3, new state: 1
> ofonod[1306]: 09:33:57|src/modem.c[409]:flush_atoms()
> ofonod[1306]: 09:34:04|src/gprs.c[2279]:gprs_context_unregister() 0x88eef68, 0x88ee908
> ofonod[1306]: 09:34:04|src/gprs.c[2413]:gprs_context_remove() atom: 0x88eef88
> ofonod[1306]: 09:33:42|drivers/atmodem/gprs-context.c[420]:at_gprs_context_remove()
> ofonod[1306]: 09:34:04|src/gprs.c[2644]:gprs_unregister() 0x88ee908
> ofonod[1306]: 09:33:58|src/network.c[1173]:__ofono_netreg_remove_status_watch() 0x88eb2d0
> ofonod[1306]: 09:34:04|src/gprs.c[2683]:gprs_remove() atom: 0x88ee970
> ofonod[1306]: 09:34:02|src/sim.c[2714]:ofono_sim_remove_spn_watch() 0x88ed6f0
> ofonod[1306]: 09:33:58|src/network.c[1836]:netreg_remove() atom: 0x88eb338
> ofonod[1306]: 09:34:09|src/telit-data-network.c[323]:telit_data_network_remove() atom: 0x88eb1c8
> ofonod[1306]: 09:34:09|src/telit-urc.c[668]:telit_urc_remove() atom: 0x88eb0a8
> ofonod[1306]: 09:34:05|src/radio-settings.c[657]:radio_settings_remove() atom: 0x88ee578
> ofonod[1306]: 09:33:28|plugins/udevng.c[1009]:remove_device() /sys/devices/virtual/net/ppp0
> ofonod[1306]: Aux: < \r\n
> ofonod[1306]: Aux: < +CGEV: NW DEACT IP, "2.194.193.31", 1\r\n
> ofonod[1306]: Modem: < ~\377}#\300!}%}"} }$Y(~

Now I get what is happening.  You're on a PPP link and pull the SIM.  So 
oFono tears everything down, but this results in the GAtChat going from 
PPP mode to normal mode too early.

We then receive the final HDLC frame, and that confuses the syntax. 
GSMv1 syntax already has code to handle this, but looks like the 
permissive one doesn't.

> ofonod[1306]: Modem: < \r\nNO CARRIER\r\n
> ofonod[1306]: Modem: < \r\n
> ofonod[1306]: Aux: < \r\n

Regards,
-Denis