When I am at work, and only at work - I get this error message periodically when trying to send text messages.
SMS Error "Radio Interface Resource Shortage"
I am in 3G range and have full bars - so it isn't a connection issue. I am just wondering what it is. I have restarted several times since I first started getting this message.
Lastly, is extreme shifts in messaging - i.e. severe lag in time it takes for recipient to get a message I send - common with Sprint? I have been with them forever and haven't had a problem (with my last 3 phones that had messaging capability) - but the EVO sometimes seems like it takes forever for my wife to get messages I send her.
Might want to call tech support, if the cell site in your area are having issue with blocked and dropped calls that will happen, that way they can mark the location, any body else at your job have an Evo that is having thr same issue