SMS receive behaviour

[Highland, Glenn]

From: ModemManager-devel [mailto:modemmanager-devel-bounces at lists.freedesktop.org] On Behalf Of Daniel
Sent: Friday, January 22, 2016 7:20 AM
To: modemmanager-devel at lists.freedesktop.org
Subject: SMS receive behaviour

Hi all,

What is the supposed behavior when the modem device receives a SMS? The message org.freedesktop.ModemManager1.Modem.Messaging.Added will be emitted on dbus?

I am using the MMQt in order to handle SMSs in an embedded device. Sending SMS it's ok.
But when I sent a message to the device, and I use the dbus-monitor in order to see if the ModemManager sends the signal Added() there is no traffic on dbus until I "reset" the modem using:
(disabling)
# mmcli -m 0 -d
(enabling) and after
# mmcli -m 0 -e

all messages that were sent to device will be received at same time and the signals are emitted in the dbus, as follows:

signal sender=:1.3 -> dest=(null destination) serial=197 path=/org/freedesktop/ModemManager1/
Modem/0; interface=org.freedesktop.ModemManager1.Modem.Messaging; member=Added
  object path "/org/freedesktop/ModemManager1/SMS/5"
  boolean true

Am I missing something?
How I can debug the process of receiving a SMS?

Follow some hardware info:

root at ts-imx6-s:~# mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id '3fba001a3e3ce5ffefda417609400ad882ef3c7f')
 -------------------------
 Hardware |   manufacturer: 'Telit'
          |          model: 'HE910-EUD'
          |       revision: '12.00.224'
          |      supported: 'gsm-umts'
          |        current: 'gsm-umts'
          |   equipment id: '354043052132539'
 -------------------------
 System   |         device: '/sys/devices/soc0/soc.1/2100000.aips-bus/2184000.usb/ci_hdrc.0/usb2/2-1'
          |        drivers: 'cdc_acm'
          |         plugin: 'Generic'
          |   primary port: 'ttyACM3'
          |          ports: 'ttyACM3 (at), ttyACM0 (at)'
 -------------------------
 Numbers  |           own : 'unknown'
 -------------------------
 Status   |           lock: 'none'
          | unlock retries: 'unknown'
          |          state: 'connected'
          |    power state: 'on'
          |    access tech: 'umts'
          | signal quality: '42' (recent)
 -------------------------
 Modes    |      supported: 'allowed: 2g, 3g; preferred: none'
          |        current: 'allowed: 2g, 3g; preferred: none'
 -------------------------
 Bands    |      supported: 'unknown'
          |        current: 'unknown'
 -------------------------
 IP       |      supported: 'ipv4, ipv6, ipv4v6'
 -------------------------
 3GPP     |           imei: '354043052132539'
          |  enabled locks: 'none'
          |    operator id: '72410'
          |  operator name: 'VIVO'
          |   subscription: 'unknown'
          |   registration: 'home'
 -------------------------
 SIM      |           path: '/org/freedesktop/ModemManager1/SIM/0'

 -------------------------
 Bearers  |          paths: '/org/freedesktop/ModemManager1/Bearer/0'
[>] Daniel: What version of ModemManager are you running?  This looks eerily similar to a problem with the Telit HE910 family
that we ran into which is fixed in ModemManager v1.4.12.  In our case when the HE910 switched into data mode on the primary
channel it wasn’t sending the SMS notifications over the secondary, because the HE910 required the AT commands to enable
SMS notifications be performed on the secondary as well.  The v1.4.12 updates include a fix for that implemented by N. Stevens
(a co-worker of mine).  We’d sometimes get the notifications on the primary right after start-up, and then nothing afterward.

Thanks in advance.
Best regards.
--
Daniel Vaz
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