If you bought your Samsung handset outright, or acquired it by Mobile Repayment Option (MRO) in conjunction with a new post-paid mobile service contract, then the handset is not locked to Telstra's network.
Your pre-paid mobile wi-fi device is locked to Telstra's network, unless you have previously requested for it to be unlock and have paid the applicable unlocking fee.
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The opinions and sentiments expressed above are mine only, and do not necessarily reflect Telstra's views or position. I work at Telstra, but my participation here is strictly in a personal capacity as a fellow Australian telecommunications services consumer, and you can safely assume you are not my customer, client, patron, benefactor or friend when I post in this forum.
