Sorry, not to center you out, but you do have an open Lodestone profile.
The Binds that Tie I
07/05/2014 - July
First Coil Nerf/Echo - Mar 2014 - First Coil Echo
In Another Bind I
01/23/2015 - January
Second Coil Nerf/Echo - Nov 2014 - Second Coil Echo
Out of a Bind I
06/07/2015 - June
Apr 2015 - Final Coil Nerf/Echo
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It appears that you were progressing Endgame while over geared and with Echo and raid nerfs, so VOIP would probably not have been all that needed considering people were 4 manning this content at that point.
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Edited: Sorry at work atm so I didn't get to follow up with where I was going with all that.
- Post Nerf, over geared content, existing strategies for a while - Is VOIP the "big bad man"? It's probably due to having a terrible attitude.