If you call Him, do you really think He's gonna let somebody else take the call?
Do you really think He's going to let some else answer when you call for Him?
Or do you think He might just be "unavailable" (like maybe gone to the bathroom) and Lucifer or the Anti-Christ or Satan or whoever might just pick up the phone and disguise his voice?
Or do you think maybe Jesus might just say, "Aaaaa...you get it. I'm watching TV."
Come on. If you ask Jesus for guidance, He will guide you.
Ask Jesus for protection. He will protect you.
Why not ask Him to screen out all voices other than His? Especially the voice of the anti-Christ, if that's what you're worried about.
Come on, man. If you can't trust Jesus--whom can you trust? If you can't trust Him--everything's lost anyway.
I stand by my statement.
and... yes, I believe you can call for help at any time and He will answer, but sometimes the answer is "no".
If one doesn't put any work into it, He may be unavailable:
Mat 7:21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Mat 7:22 Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
Mat 7:23 And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.