This behavior changed for me a couple months ago. The GoToMeeting app offers a "Switch to Phone Call" option. When I select it, the phone pops up the same prompt as when you are on a web site with a phone number you want to dial (dialing from a web site still works on my phone). After I initiate the switch to "phone call mode", audio from the internet connection turns off and the phone never dials the number. I then experience no audio for 30-60 seconds before it shows a prompt which asks whether to retry. If I cancel, then I select the "internet mode" to re-esatablish internet-based audio.
A few months ago attendees from my company conference calls noticed that some callers were not listed at all as attendees (invisible "ghost" callers). I was told someone changed the company-wide configuration to prevent that so maybe that broke the ability to use GoToMeeting to initiate a dial in session.
However, if I simply dial the number outside of the app it works fine. This is a less desirable situation because you need a copy of the meeting id to type in and you don't get an audio pin which (I assume) identifies who you are to other participants.
