Operating system name and version: CentOS 7 64
Version of smsd: 3.1.21
Smsd installed from: package repository
Interface: LAN


The SMS modem CONIUGO Telit LE910-EU V2 is used to send SMS alarms from Linux server.
It always happens that the Linux SMS Daemon loses connection to the modem (CMS Error 111).
Since the cause has not been found yet, the only solution is to restart the modem and the SMS daemon.

To automate this process, we had an idea to restart the modem and service by script in case of a problem.
Unfortunately, so far I have not found a way to send the command AT#ENHRST=1,0 via telnet (?).
I reach the modem with telnet xx.xx.xx.xx 9999, but there I find only Setup Menu.

Does anyone have experience how to send AT commands on the modem?