Citeck ECOS have telegram integration in ecos-order-pass module.
With this module you can order a pass. For this you need to do next steps:
telegram.bot.token=your-bot-token telegram.bot.enabled=true |
2. Add telephone of the telegram user to cm:person that will be authenticate. The property in which to add the phone is cm:mobile.
When you authenticate in telegram bot system finds user in ECOS using the phone from telegram contact. If user finded then authenticate is successful.