what is e-mail and c-mail in mobile phone?
 

what the difference? i use au.

I don't even know what your talking about lolz

e-mail is like regular e-mail that u can send to any e-mail address, while c-mail can only be sent to other au subscribers using their phone nr and not their e-mail address. c-mail is also cheaper (or even free of charge) but it only allows u to send 100 characters at a time.

so if i want to send to docomo or softbank, i must subscribe for e-mail right?

yes, or for that matter to a regular e-mail address too. i don't know anyone who doesn't include an e-mail subscription today.

this u might know, but since u only mention softbank and docomo, i'll say it anyway.
in the japanese mobile system no texting or SMS exist. u send a regular e-mail through, in the mobile phone embedded, e-mail client. the advantage of this system is that u can send e-mails to a computer too and u can receive regular e-mails from a computer, such as a gmail or any other e-mail provider. meaning that ppl in the US, AU or Europe can in theory always reach without actually calling u.

got that, thank u very much

Yeah...my boyfriend uses docomo, and it's helpful, since though I'm in america, I can let him know/ask when to call, what to do, etc.