"I'll call to your room" vs "I'll call you in your room"

[Storm]

Which are the correct ones?
1. I'll call to your room
2. I'll call you in your room
3. I'll make a call to your room

Which are the correct ones?
1. You can call to room service
2. You can call us at the room services
3. You can reach us at the number 4562.

[Mister Micawber]

.
The correct ones--

1. I'll call your room
2. I'll call you in your room
3. I'll make a call to your room

1. You can call room service.
2. You can call us at room service.
3. You can reach us at 4562.
.
_________________
Native English teacher at Mister Micawber's

[Storm]

And about these
1. the guests wanted to call to oversea
2. the guests wanted to call oversea

1. the guests wanted to make a call to oversea
2. the guests wanted to make an oversea call

[Mister Micawber]

.
These are OK:

2. The guests wanted to call overseas.

2. The guests wanted to make an overseas call.
.
_________________
Native English teacher at Mister Micawber's