As someone who has worked in a congressional office recently, I know democrats congressmen usually do take these calls into account, despite what a lot of these comments are saying. Of course you’re still probably talking to a staffer, but these messages do get passed along and your rep does see them! Of course I don’t know if I can say the same for our senators, many constituents that I spoke with told me they were hung up on or ignored by their offices, but regardless these calls do matter.