To use the same service for your antenna, you need to create a subdomain, pointing to A 18.104.22.168.
E.g. you are AEGEE-X and have the website aegee-x.org. You want to have the service under k.aegee-x.org (k standing for both Kulture and Kalendar). Create the record
k.aegee-x.org. 86400 IN A 22.214.171.124
Optionally create following record to simplify the setup for software
_caldavs._tcp.aegee-x.org. 86400 IN SRV 0 1 443 k.aegee-x.org.
Optionally create this redirection to simplify the setup for software
https://aegee-x.org/.well-known/caldav/ → https://k.aegee-x.org/dav/calendars/
The redirection must be able serve PROPFIND requests, otherwise it has no added value.
Send that domain to firstname.lastname@example.org . You will get a user name and password. The password expires every third month. It can be changed anytime at https://mail.aegee.org/kpasswd/ .
To send the events to a Telegram channel, either the public name of the channel must be communicated, or the internal group/channel id (this is a negative number).
When 🕙︎Friday, January 28, 2022 at 10:00 - 11:00 GMT+2
Created on Thursday, January 13, 2022 at 10:53:02 GMT+2
Last modified on Friday, January 14, 2022 at 12:44:55 GMT+2
Link to calendar https://central.aegee.org/?d=2022-01-28&id=a90fbeaea84a8267ca132b75389e759526de0512c&cal=2
💾︎iCalendar file https://central.aegee.org/c/2/90fbeaea84a8267ca132b75389e759526de0512c.ics