Voicemail not working, phone or system?

[Grateful Dave]

I have contacted Sprint twice. I cannot get voice mail notification on my phone. If I try to connect with voice mail box by speed dial or directly, phone disconnects. If I call my phone I get no response when it is turned off. If the phone is on, I get the ringing, but it doesn't go to voice mail. If the phone is on and I get a call, I cannot ignore it, and it will continue to ring. I just odin EH06 and the only difference is I now seem to get voice to mail.

I was hoping to flash a new ROM today using EH06, should I go back to EC05?

Thanks

David