Assistance testing out Visual Voicemail for multiple USA providers [USA People only]

I'm looking for someone currently in America who has access to the following: 1. Visual Voicemail on their AT&T account 2. A working iPhone which is able to connect to this AT&T account 3. Optionally, and Android phone which is also able to connect to this visual voicemail AT&T account. There are a few things that I would like to test regarding the AT&T visual voicemail connection, for research purposes. It will require you to be on Skype call with me, or to communicate with me so that we can perform the testing together. The job should not take long at all, I just need someone with all of these pre-requisites.