Caller: I dont know

Didn't answer this phone call but they've called multiple times I think its spam

Could hear Indian call centre in background of voicemail
This is spam

Claimed to be from an energy company. Made an appointment to look at my electric water heater for a potential replacement and never turned up. No call or anything. I suspect its a scam

Left a 3 second message and you can hear breathing

Call and leave no VM. Likely spam.

Same multiple calls and nothing said

Picked up and I kept quiet. silence on the other end. call ended by other party after 5 secs.