Outgoing SMS not working

[controloye]

the command
dongle send -i 867749018919971 -n 0312345678 -t CheckNow
always rturns 0

following are logs - please advise.

SmsStack /dev/ttyUSB3 Sending text:
SmsStack /dev/ttyUSB3 'CheckNow'
SmsStack /dev/ttyUSB3 to: 0312345678, message id ( send date timestamp ): 1719316079887 +40m
SmsStack /dev/ttyUSB3 Sending Message part 1/1 of message id: 1719316079887 +0ms
lib/atBridge.js (AT) urc: \r\n^BOOT:18919971,0,0,0,20\r\n ( NOT forwarded to asterisk-chan-dongle ) +30s
SmsStack /dev/ttyUSB3 Retry sending PDU +26s
SystemState /dev/ttyUSB3 Signal strength tier change: 19, "–109 dBm to –53 dBm" -> 0, "<=-113 dBm" +8m
lib/atBridge.js (AT) urc: \r\n^RSSI:0\r\n ( forwarded to asterisk-chan-dongle ) +28s
lib/atBridge.js (AT) urc: \r\n^BOOT:18919971,0,0,0,20\r\n ( NOT forwarded to asterisk-chan-dongle ) +2s
SystemState /dev/ttyUSB3 Signal strength tier change: 0, "<=-113 dBm" -> 19, "–109 dBm to –53 dBm" +3s
lib/atBridge.js (AT) urc: \r\n^RSSI:19\r\n ( forwarded to asterisk-chan-dongle ) +986ms
SystemState /dev/ttyUSB3 Signal strength tier change: 19, "–109 dBm to –53 dBm" -> 0, "<=-113 dBm" +9s
lib/atBridge.js (AT) urc: \r\n^RSSI:0\r\n ( forwarded to asterisk-chan-dongle ) +9s
SystemState /dev/ttyUSB3 Signal strength tier change: 0, "<=-113 dBm" -> 19, "–109 dBm to –53 dBm" +3s
lib/atBridge.js (AT) urc: \r\n^RSSI:19\r\n ( forwarded to asterisk-chan-dongle ) +3s
SmsStack /dev/ttyUSB3 Retry sending PDU +25s
SystemState /dev/ttyUSB3 Signal strength tier change: 19, "–109 dBm to –53 dBm" -> 0, "<=-113 dBm" +3s
lib/atBridge.js (AT) urc: \r\n^RSSI:0\r\n ( forwarded to asterisk-chan-dongle ) +3s
SystemState /dev/ttyUSB3 Signal strength tier change: 0, "<=-113 dBm" -> 18, "–109 dBm to –53 dBm" +3s
lib/atBridge.js (AT) urc: \r\n^RSSI:18\r\n ( forwarded to asterisk-chan-dongle ) +3s
lib/atBridge.js (AT) urc: \r\n^BOOT:18919971,0,0,0,20\r\n ( NOT forwarded to asterisk-chan-dongle ) +11s
SmsStack /dev/ttyUSB3 Send Message Error after 3, attempt: unknown error +25s
[ Sip API handler ] :sendMessage 75901ms
127.0.0.1:48399 (local) <= 127.0.0.1:49236 (remote)

---Params: {"viaDongleImei":"867749018919971","toNumber":"0312345678","text":"CheckNow"}
---Response: {"success":false,"reason":"CANNOT SEND"}