[xplorer]

I am experiencing audio problems in 8320 since last weekend. When I call someone of when someone calls me they can hear me but I cannot. This happens only when mode is UMA. I tried this from my home, work and from a Starbucks. When I called TMO on Tuesday I was told it is a global outage. Today, when I called TMO again they went through all typical troubleshooting and so far nothing is resolved. The last they asked me to wipe and reload I did that but no luck :( .

[John Clark]

Strange. UMA is working ok for me. Have been talking on it all day. If you've wiped and reloaded then not sure where to go from there. Could be something wrong with your device.

[xplorer]

When I called TMO again they said to replace my SIM. I will go to TMO shop after I leave work and will post back after replacing the SIM.

[xplorer]

So, I had my SIM changed and before change I also showed it to TMO Retail Store Rep who confirm there is a problem with the phone and after the SIM change my phone started working again and was working flawlessly for one hour and now I have almost similar problem before SIM change I would not hear other and now other cannot hear me. I called TMO again and they have opened a trouble ticket.

[xplorer]

UMA calls started working again from this morning. I had a trouble ticket open since yesterday maybe they fixed something.

[pyrosee]

I've had to replace my SIM twice since I got this phone in september to fix my UMA. Anyone with UMA infrastructure expertise care to speculate why UMA ceases to function on a (new) sim card and why it keeps happening?

:o