So many people have phone phobia in this field. I feel that if you want to work from home you need to make voice calls work for you.
(It usually doesn't happen more than once a week. Being reasonably acccessible on Slack reduces the need for these calls somewhat.)
(It would typically be initiated the same way, e.g. via a Slack question if they are ok talk on the phone. If there's no reply and it's blocking other stuff; yeah I am going to place an actual 20th century phone call.)
Clicking the green button on Discord or a softphone is not.
I have never used a physical 'telephone handset' (and don't have a desk phone)
;)
Phone calls are less information dense to many developers to something like slack, especially if you need to send a link, a document, etc.
Slack is also async in that I don't have to immediately answer. I can get to a nice commit point in 5 or so minutes and not have to stop in the middle of a deep thought.
If it's a scheduled call once a week though, that shouldn't matter at all. Maybe they just don't like you :D j/k. A lot of devs think they communicate as well via voice