On 3 December 2013 12:09, Petros <Petros.Listig@fdrive.com.au> wrote:
and there seem to be many APNs (telstra.wap, telstra.mms, telstra.internet)..

I seem to be using telstra.wap, although there is an option for telstra.mms.
 
I only can find this on GUI level:

Telstra Internet (radio button, default on) and

Seems like it knows about Telstra.
 
Note: the Hong Kong phones also support tri-band 3G Networks — HSDPA
850/1900/2100 (850/1900 for US, CA, 850/1900/2100 for Asia, AU, and
900/2100 for EU.)

Well, the network scan for 3G says: "Telstra available" (and Optus and
Vodaphone forbidden - I have a Telstra SIMM) so I am fine, I guess?

For Telstra 3G (NextGen) you need 850, so it looks like you should be fine here.

Assuming you don't have 4G.