I want to get rid of the router from my isp (Speedport from German Telekom). So I bought an o2 HomeBox 6431 and flashed it with OpenWrt. VDSL and the ip connection is working, but I also want to use my telephones (connected via fxs ports) with the router. To achieve this, I installed asterisk. But I have no idea how to configure the asterisk to work with a so-called ALL-IP connection.
Has somebody configured a OpenWrt router to work with an ALL-IP connection?
Start here: https://openwrt.org/docs/guide-user/services/voip/asterisk
Configuration examples for Deutsche Telekom can be found on this site: https://www.linuxmaker.com//asterisk-pbx/grundkonfiguration-pjsipconf.html
All of these configurations are for NGN (or "all IP") links.
Here is another detailed Asterisk Howto for DTAG: http://www.rotherland.de/en/voip.html
When you're done, it would be nice If you could post your configuration here or in the wiki. That way other users with the same question can start directly.