Who called from 2135956477

Unknown caller. No voicemail left. 100% sure it's a robo-call for telemarketing or scammer. Avoid.

No vm left.

Called me and when I answered there was silence. Then a loud cough and asked if I was grandma (They used her last name) and I said no. They hung up.

Called on a Sunday morning?? -- left no VM

No msg.