Sending SMS from USB Modem and Getting CMS Error 350

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1

I am not able to send normal text messages. This post did not mention the original numbers due to security concerns. Kindly help me resolve the following error.

at+creg?
+CREG: 0,1

OK
at+csq
+csq: 19,99

OK
at+cops?
+cops: 0,0,“Vodafone IN”,0

OK
at+csca=“983909XXXX”,145
OK
at+cmgf=1
OK
at+cmgs=“1234543210”

Hiiii ctrl^z

+CMS ERROR: 350

It worked fine in the previous firmware with the same sim and setup. I have upgraded my firmware to
SWI9X07H_00.08.24.02 f90cbd jenkins 2022/03/21 03:47:54

Could this be due to an update of firmware?

2

I don’t see problem:


ati3
Manufacturer: Sierra Wireless, Incorporated
Model: RC7620-1
Revision: SWI9X07H_00.09.10.00 85890e jenkins 2023/09/25 03:16:56
IMEI: 35363511012435
IMEI SV: 29
FSN: 7T118701512345
+GCAP: +CGSM

OK
at!gstatus?
!GSTATUS:
Current Time:  165              Temperature: 33
Modem Mitigate Level: 0         ModemProc Mitigate Level: 0
Reset Counter: 1                Mode:        ONLINE
System mode:   LTE              PS state:    Attached
IMS reg state: UNKNOWN          IMS mode:    Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
LTE band:      B3               LTE bw:      20 MHz
LTE Rx chan:   1400             LTE Tx chan: 19400
LTE CA state:  INACTIVE
EMM state:     Registered       Normal Service
RRC state:     RRC Idle

PCC RxM RSSI:  -60              RSRP (dBm):  -96
PCC RxD RSSI:  -85              RSRP (dBm):  -119
Tx Power:      --               TAC:         0652 (1618)
RSRQ (dB):     -14              Cell ID:     01A13220 (27341344)
SINR (dB):     -2.8

OK
at+Cmgf=1
OK
at+cmgs="12345678"
> asdfasdf

+CMGS: 24

OK