Who called from 4085334418

I got a call from this number and when i call back again its saying that there are network dificulties and cannot connect.

Caller asked for the person in our office who purchases office supplies.  Very bad connection, could barely hear what the caller was saying.  Sent the caller into the buyer's voicemail; of course he/she didn't leave a message.

1-408-533-4418 is calling daily several times a day and if you answer no one talks and if you call the number --it says due to network difficulties your call can not be completed. How can I have this number blocked or reported?

called twice within a minute.
no answer when I would say "hello"
some background could be heard

Called - said she was a recruiter from Orange County and she needed a referral and there was a very bad signal. She called twice and we were not able to talk because of the static connection. I definitely dont know why a recruiter would be calling me for a referral at work