diff --git a/docs/facilities.md b/docs/facilities.md
index bd34d1bc23250e7162e324f2c1ccd486f701e30a..533a8b1a637c85aff0af799da548a2019692b1ea 100644
--- a/docs/facilities.md
+++ b/docs/facilities.md
@@ -100,16 +100,31 @@ Heaven is the “partner exchange” of the Chaos events. We try to distribute l
 ## POC
 
 As it is customary for CCC events for ages, the POC (Phone Operation Centre) powered by eventphone is again
-operating a site-wide DECT network.
+operating a site-wide DECT and SIP network.
 
-In order to use the network, please
+### How to register and activate a device
 
 * create an account (or log in using an existing account) on [GURU](https://guru3.eventphone.de/)
 * register your phone(s) in the GURU web interface
-* bring your DECT phone (only EU band phones for the DECT band work; US-DECT operates in 2.4 GHz and is not compatible)
-* once on-site, go to the POC helpdesk and ask a friendly angel to activate it
+* bring your DECT phone (only EU band phones for the DECT band work; US-DECT operates in 2.4 GHz and is not compatible) or SIP client
+* once on-site, you can self service your device. By calling you activation token. [how to activate](https://eventphone.de/blog/2018/08/30/the-new-dect-registration/#more-172)
 
-More information can be found at the resources linked from the [eventphone support page](https://guru3.eventphone.de/support/)
+### Device/Client compatible
+
+A full list of working DECT phones can be found [here](https://eventphone.de/doku/dect_phone_compatibility_list).
+If you are not sure, what SIP client you want to use, we have a list of [known working clients](https://eventphone.de/doku/sip_compatibility_list).  
+
+### Problems with your Device?
+
+Please make a ticket in our [eventphone support page](https://guru3.eventphone.de/support/).
+
+### Where are we (IRL)?
+
+you can find us at the [POC helpdesk](https://map.events.ccc.de/camp/2023/map/#18.86/53.0312104/13.3053742/m=53.031132,13.305331)
+
+### Get further information
+
+More information can be found at the resources linked from the [eventphone support page](https://guru3.eventphone.de/support/) or you can come to the [POC helpdesk](https://map.events.ccc.de/camp/2023/map/#18.86/53.0312104/13.3053742/m=53.031132,13.305331).
 
 ## GSM