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Question

Problems: No incoming SMS in WebUI or CLI. Can't change SMS storage to SIM from Modem.

Further investigation shows the modem is receiving the SMS.

Possible cause: gsmctl or gsmd is not properly accessing the modem's storage?

Notes:
################################################################################

Received SMS shows nothing in WebUI
Received SMS shows nothing in CLI (gsmctl)

when receiving sms, this is shown by logread -f
Mon May 15 10:21:03 2023 daemon.err /usr/sbin/sms_utils: Unable to read sms '14'
where '14' should be the index number of the latest SMS in storage.

Listing SMS by CLI produces empty results, and reading by index errors:
root@RUT240:~# gsmctl -S -l "all"
root@RUT240:~# gsmctl -S -r 0
[gsmctl_read_sms:68] error: ERROR: Library misuse

################################################################################

Switching to SIM storage fails

shown by logread -f
Mon May 15 10:19:19 2023 daemon.err mobifd: [gsm.modem0] SMS storage is null. Need to switch.
Mon May 15 10:19:19 2023 daemon.info mobifd: [gsm.modem0] SMS storage: me

################################################################################

Sending SMS working via WebUI

Sending SMS via CLI (gsmctl) works
root@RUT240:~# gsmctl -S -s "REDACTED Testing via command line"
SMS sent: 1

################################################################################

Listing all SMS via AT commands (default options) shows nothing:

root@RUT240:~# gsmctl -A 'AT+CMGL=?'
+CMGL: (0-4)
root@RUT240:~# gsmctl -A 'AT+CMGF?'
+CMGF: 0
root@RUT240:~# gsmctl -A 'AT+CMGL=0'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL=1'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL=2'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL=3'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL=4'
OK

Reading all SMS via AT commands (default options) shows nothing:
root@RUT240:~# gsmctl -A 'AT+CMGR=0'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=1'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=2'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=3'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=4'
OK

Listing all SMS via AT commands (CMGF=1) shows nothing:

root@RUT240:~# gsmctl -A 'AT+CMGF=1'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL=?'
+CMGL: ("REC UNREAD","REC READ","STO UNSENT","STO SENT","ALL")
root@RUT240:~# gsmctl -A 'AT+CMGL="ALL"'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL="STO SENT"'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL="STO UNSENT"'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL="REC READ"'
OK
root@RUT240:~# gsmctl -A 'AT+CMGL="REC UNREAD"'
OK

Reading all SMS via AT commands (CMGF=1) shows nothing:
root@RUT240:~# gsmctl -A 'AT+CMGR=0'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=1'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=2'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=3'
OK
root@RUT240:~# gsmctl -A 'AT+CMGR=4'
OK

################################################################################

Receving SMS via gsmd debug (edit /etc/init.d/gsmd to include -D for command line options)

Receiving SMS with default AT commands shows activity:

root@RUT240:~# gsmctl -A 'AT+CNMI?'
+CNMI: 2,1,0,0,0

Mon May 15 10:28:51 2023 daemon.info gsmd[21835]: Mon May 15 10:28:51 2023 \r\n+CMTI: "ME",15\r\n

(but shown above,
/usr/sbin/sms_utils: Unable to read sms '14'
shows that sms_utils isn't parsing it correctly?)

Receiving SMS with CNMI=,2
root@RUT240:~# gsmctl -A 'AT+CNMI=,2'
OK
root@RUT240:~# gsmctl -A 'AT+CNMI?'
+CNMI: 2,2,0,0,0

Mon May 15 10:31:07 2023 daemon.info gsmd[21835]: Mon May 15 10:31:07 2023 \r\n+CMT: ,76\r\n (REDACTED, CODED MESSAGE EXPECTED BY CMGF=0 INCLUDES TELEPHONE #) \r\n

(this shows that the message is definitely being received by the modem!)

Receiving SMS with CNMI=,2 and CMGF=1

Mon May 15 10:32:15 2023 daemon.info gsmd[21835]: Mon May 15 10:32:15 2023 \r\n+CMT: "REDACTED",,"23/05/15,09:32:14-24"\r\nPain in the butt! I KNOW the SMS is being received by the modem! \r\n

(and this proves that the message is UNDOUBTEDLY being recieved by the modem)

################################################################################

Device Information:

################################################################################
Device name
    RUT240
Product code
    RUT2400AXXXX
Bootloader version
    4.0.7
Serial number
    REDACTED
Hardware revision
    0011
Batch number
    0110

Firmware version
    RUT2_R_00.07.04.2
Kernel version
    5.4.229
Local device time
    2023-05-15 15:14:59
Uptime
    00h 11m 21s
Load average
    0.63, 1.30, 1.05

Model
    EC25-AFF
IMEI
    REDACTED
FW version
    EC25AFFDR07A09M4G_01.005.01.005

Operator
    Visible
Operator state
    Registered, home
Cell ID
    REDACTED
Data connection state
    Connected
Network type
    4G (LTE)

################################################################################
gsmctl -E
showing sms_index increasing with each incoming sms
{
                "name": "Quectel EC25-AFF",
                "model": "EC25-AFF",
                "manuf": "Quectel",
                "driver": "Quectel EC25-AFF AT",
                "usb_id": "1-1",
                "vid_pid": "2c7c:0125",
                "tty_port": "/dev/ttyUSB2",
                "gps_port": "/dev/ttyUSB1",
                "baudrate": 115200,
                "aux_port": "/dev/modem0",
                "builtin": true,
                "primary": true,
                "simcount": 1,
                "modem_func_id": 2,
                "is_busy": 0,
                "pending": 0,
                "state_id": 1,
                "state": "Idle",
                "last_active": "2023-05-15 10:37:19",
                "band_list": [
                        "WCDMA_850",
                        "WCDMA_1700",
                        "WCDMA_1900",
                        "LTE_B2",
                        "LTE_B4",
                        "LTE_B5",
                        "LTE_B12",
                        "LTE_B13",
                        "LTE_B14",
                        "LTE_B66",
                        "LTE_B71"
                ],
                "cache": {
                        "firmware": "EC25AFFDR07A09M4G_01.005.01.005",
                        "imei": "REDACTED",
                        "serial_num": "REDACTED",
                        "pin_state": 1,
                        "pin_state_str": "OK",
                        "gsm_bands": 0,
                        "wcdma_bands": REDACTED,
                        "lte_low_bands": REDACTED,
                        "lte_high_bands": 2,
                        "rssi_value": -79,
                        "rsrp_value": -110,
                        "sinr_value": 0.200000,
                        "rsrq_value": -16,
                        "service_mode": 21,
                        "service_mode_str": "LTE",
                        "net_mode": 1,
                        "imsi": "REDACTED",
                        "sms_mode": 1,
                        "sms_mode_str": "PDU Mode",
                        "network_state": 1,
                        "sms_index": 16
                },
                "cache_stats": {
                        "heap_usage": "950 B",
                        "item_count": 21
                },
                "comm_stats": {
                        "tty_tx": 4997,
                        "tty_rx": 19840,
                        "tx_highest": 55,
                        "rx_highest": 507,
                        "aux_fd_num": 0,
                        "recv_pipe_fd": 7,
                        "send_pipe_fd": 8
                },
                "parser_stats": {
                        "c_grow_cnt": 1,
                        "c_len": 0,
                        "c_cap": 1024,
                        "u_grow_cnt": 1,
                        "u_len": 0,
                        "u_cap": 1024
                },
                "evtmgr_stats": {
                        "recv_pipe_fd": 14,
                        "send_pipe_fd": 15
                }
        }
Enabled band:     WCDMA_850
Enabled band:     WCDMA_1700
Enabled band:     WCDMA_1900
Enabled band:     LTE_B2
Enabled band:     LTE_B4
Enabled band:     LTE_B5
Enabled band:     LTE_B12
Enabled band:     LTE_B13
Enabled band:     LTE_B14
Enabled band:     LTE_B66
Enabled band:     LTE_B71

################################################################################

Answer 1 · 2023-05-16T05:56:55+0000

Hello,

Before taking any action, I would like you to attach a troubleshoot file to your question. Please, make sure the issue is present, then access router's WebUI, go to System -> Administration -> Troubleshoot section and download troubleshoot file from there. Since there have been similar cases, I would like to take it to the development team.

Next, could you provide the output of the following command, to check, if the currently used storage is not full:

ubus call gsm.modem0 get_msg_storage

Lastly, could you try deleting a few messages, with the following command, in case the storage is full:

gsmctl -S -Z <index>
- Replace <index> with an integer number.

Best regards,

original post has been updated with a troubleshoot file.

here are the outputs of the two commands requested. These options did not changesms_index given by gsmctl -E

root@RUT240:~# ubus call gsm.modem0 get_msg_storage
{
"mem1": {
"storage": "ME storage",
"storage_id": 2,
"used": 0,
"total": 99
},
"mem2": {
"storage": "ME storage",
"storage_id": 2,
"used": 0,
"total": 99
},
"mem3": {
"storage": "ME storage",
"storage_id": 2,
"used": 0,
"total": 99
}
}

root@RUT240:~# gsmctl -S -Z 16
OK
root@RUT240:~# gsmctl -S -Z 16
OK
root@RUT240:~# gsmctl -S -Z 16
OK
root@RUT240:~# gsmctl -S -Z 19
OK
root@RUT240:~# gsmctl -S -Z 0
OK
root@RUT240:~# gsmctl -S -Z 1
OK — May 16, 2023
I have forwarded your issue to the development team to look into.

Once there are updates, I will post them here.

Best regards, — May 18, 2023

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