(AUSTRALIA) Is it possible to be with Optus and get a mobile phone from another

[MR X]

group like Virgin or Telstra? I am australian, and I have a plan with optus, and I have a really crap phone. I want to get a better phone, without changing the plan so I need to get a pre-paid phone. Since Optus pre-paid phones are really **** and have a range of like five $60 phones,is it possible to have a compeditors phone like Virgin or Telstra with an Optus sim card?

[lostandfound]

of course you can just go and buy one ive got an otus and yes it is a crap phone the 49 cap but im taking it up with them also as its like a breach of contract not giving you good quality ......optus is good service but crap phones ive giot around 4 phones and use mine in the different ones but the virgin and optus take the same sim (if its locked to optus) Nokia (NYSE: NOK) by far are the best phones