I never call them in Washington DC. Call their offices in their states.
Lines to Cornyn’s offices in Texas are either busy, you get disconnected after you push a selection button or you are shuttled to their mailbox which is full. Even tried to send a fax this morning at 2 a.m. which said: “I’m watching Senator Cruz stand up for his constituents in Texas. Don’t see you in the audience and have not seen you supporting him in person. Why not?”
Fax line rang and rang and no answer.