Add support for G.711 uLAW and aLAW codecs. This will enable the use of the SIP call in functionality on many more SIP phones and will greatly simplify interconnection with the Asterisk PBX.
Installing the OPUS codec isn’t trivial on Asterisk. You have to download a precompiled module and place some other files in special locations to get it to work properly. If uLAW and aLAW were supported in Homeassistant, this configuration step would dissappear.