What I understand is that Smart BLF is supposed to be able to pull an address book and fill in the side car button info. @mdavenport referred to in 2020 to a document I can no longer find, but the quoted part indicates I need to make sure to set the blf_contact_group in res_digium_phone.conf.
But when I went to lookup how, I saw that in 2021 @lgaetz pointed out that I’m not supposed edit that file directly at all.
So… I’m left wondering how I’m supposed to do this…