mikrotik-sms-forward-telegram

Set of scripts to forward SMS messages to Telegram for Mikrotik

Tested on Mikrotik LGH LTE6 Kit

Features

• Works directly with modem
• Supports UCS2 (non-ASCII) messages

Setup

• Create a telegram bot using @botfather
• Get chat id or group id using https://api.telegram.org/botXXX:YYYY/getUpdates
• Fill in bot token and chat id in tgbot-notify.rsc
• Save all 3 scripts on your mikrotik device

Create schedules

• tgbot_notify_robot : /system script run tgbot_notify.rsc at startup, interval 1m
• tgbot_smsfwd_robot : /system script run tgbot-smsfwd.rsc at startup, interval 3m
• tgbot_notify_startup : /system script run tgbot-startup.rsc at startup once

Dusable SMS processing

• Disable SMS processing /tool sms set receive-enabled=no auto-erase=no

Workflow

• Messages queued to send are stored in TGBOTMQ array of messages. Each message is array with mandatory Message(str) field and Sent(str) fields and any optional fields.
• tgbot_notify_robot task runs every minute. It looks for global TGBOTMQ array of messages for messages with Sent = "no". It rties to send message, and if message is sent OK, message's Sent is set to yes
• tgbot_smsfwd_robot task runs every 3 minutes. It looks for SMS stored in SIM card, decodes them into text format and puts into TGBOTMQ array. Messages with Sent = yes are removed from both TGBOTMQ and SIM card.
• tgbot_notify_startup task runs at startup, waits for NTP time to be synced and sends message with boot event to TGBOTMQ