I am currently running T-Mobile - Alliance Rom on stock slot.
If you are running a ROM from another S5 post the variant and rom here.
-On each reboot there is no no 4g data, You have to go into APN setting and wait a second and can back out of it and data comes right on.
Just to clarify on the Voicemail issue (as I didn't see this specific explanation) it's that when pressing any number keys (wihile on a call) it's not relaying/playing the tones associated with those keys as voicemail doesn't receive your "button" pushes. Again that's the ONLY issue I've had with the ROM so far.
There's a new version build 4. Is there any update on SMS working? Was the issue with vzw or tm sim? I would like to use Alliance rom with T-mobile sim.
---------- Post added at 10:11 PM ---------- Previous post was at 09:38 PM ----------
What carrier sim are you using? Are you using build 4? Is SMS working for you? That's the only thing that holding me back. Does wifi calling work if you use T-Mobile sim? There's also a AllianceRom Lite, did you try that?