I had a lot of trouble getting help making my Sony Ericsson K610i send/receive MMS on the Optus network. Googling yeilded nothing helpful and both the Optus and SE site which was supposed to help did not work - the Optus one didn't even send me a set of settings that could be installed and the SE ones were wrong. It was a shame that Optus Customer and Tech Support couldn't help me - I hope this helps you.

I will add this disclaimer - it worked for me - I can not guarentee that it will work for you or that if you use these settings you will not be charged more than usual. I don't know why these settings worked and the others didn't. So if you follow these instructions or use these settings then you do so AT YOUR OWN RISK. I am not responsilbe for the risk you choose to take. Like I said I don't know how this impacts upon your data charges either.

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General Settings

MMS Profile:
Profile Name: Optus MMS [your choice this doesn't matter]
Message Server: http://mmsc.optus.com.au:8002/ [I think the slash on the end matters]
Internet Profile: Optus Zoo [you need to edit it and make sure it has the following settings - I used the one on the phone called Optus Zoo to finally get the MMS to work properly. See next section]

Internet Profile [Optus Zoo]:
Connect Using: Optus Zoo [this is the name of the Data Account - see below]
Use Proxy: Yes
Proxy Address: 202.139.88.152
Port Number: 8070
Username: [blank]
Password: [blank]

Data Account [Optus Zoo - GPRS data]:
APN: wap.optus.net.au
Username:
Password:
Login Request: Off
Allow Calls: Automatic
IP Address: ...
DNS Address: ...
Authentication: None, PAP, CHAP.
Data Compression: OFF
Header Compr.: OFF

Step By Step Instructions for the K610i.

MMS Settings

1. Start at the desktop.
2. Click the joystick once to get to the menu.
3. Choose Messaging and click Select.
4. Move down to Settings and click Select.
5. Move down to Picture Settings and click Select.
6. Move down to MMS Profile and click Edit.
7. Select Optus MMS and click More then choose Edit.
   1. If Optus MMS is not available then Select New Profile and choose Add.
   2. use the settings as outlined in the next few steps.
8. The Profile Name doesn't matter [Optus MMS].
9. Make sure that the Message Server is http://mmsc.optus.com.au:8002/
10. Move down to Internet profile and click Edit.
11. Select Optus Zoo and Click More then choose Settings.
    1. if the Optus Zoo Internet Profile is not available then Select New Profile and Choose Add.
    2. use the settings as outlined above in the section headed Internet Profile [Optus Zoo].
12. make sure the settings are as outlined above in the section headed Internet Profile [Optus Zoo].
13. The Connect Using should be set to Optus Zoo and the Data Account should have the settings as outlined in Data Account [Optus Zoo - GPRS Data].

last update: Jan 17th, 2007.