[Stein357]

Hey, can anyone on AT&T that has the group messaging feature enabled post your APN? I don't have the option to click it and from what I can tell it is APN dependent. Thanks!

[Parth Ghetia]

I've attached my APN settings and the Group MMS setting tickbox. Being on the "phone" APN is not required for group mms, and wap.cingular APN uses a different MMSC gateway so don't mix the settings with other APNs as it won't work. Either way, this feature worked on both APNs on AT&T so I don't know. Can you post a screenshot of the greyed out tickbox?

[shea-bird]

proxy.mobile.att.net
port 80

but that is a along with a host of other APN changes I made to enable HSPA+. group messaging worked for me out of the box on ATT- even with the stock APN settings. when I changed all mine, it still works and this it what I have as the mms setting now

[shea-bird]

yes, exactly- take those screen shots and change all fields if you want to use HSPA+. That is exactly how I configured mine. MMS confirmed working.