[Q] Marshmallow Visual Voicemail settings - manual entry?

With 6.0 making the rounds now with OTA's coming through I'm interested to know if it's possible to turn on Visual Voicemail even though carriers would (likely) not have enabled it yet. In my situation, my carrier supports Visual Voicemail for iPhone users but android is not yet supported. I'm wondering if there's a way that anyone knows of, to manually enter the carrier settings for it to be used.

For reference, I'm on Vodafone in Australia, and a random dev has made an app for visual voicemail which works on Android but its nice to have it natively.

Marshmallow Visual Voicemail

I know it's supported by T-Mobile. I can't get it to work whatsoever. I'm not even getting notifications that I'm getting voicemail. When I check them every caller is unknown. I've always used Google voice on every phone. I flashed the factory image and set up my mailbox. Is there something im missing to get visual voicemail to work?

Sent from my Nexus 6 using Tapatalk

Google voice; reject goes to Verizon voice-mail instead..

so on every phone I've ever had, when I ignore a call by hitting reject, it would goto my Google voice. I tried with my brother who has an og moto x, his goes to Google voice. same with my friend on an s6.

on my new moto x pure, whenever I hit reject, it goes to Verizon voice-mail and not google voice. wtf? why? my note 4 reject went to Google voice.. so did my g2. and my s4. and my dna. and so forth.

what's going on here?

Sent from my Moto X Pure Edition

Fido S6 / S6 Edge Calls go to voicemail when on wifi after 5.1.1 update

I have an S6 Edge that just got the OTA yesterday for 5.1.1 on Fido. My girlfriend also has the S6 and updated to 5.1.1. We are both having issues where calls are going directly to voicemail. I've narrowed it down to this only happening when we are on wifi. I tried calling fido and they weren't much help. Anyone else experiencing this ?

Straight to voicemail issue

I have the Straight Talk Samsung Galaxy SIII SCH-S960L. (I was told it's a brother phone to the sprint galaxy s III) anyway. It's stock rom, not rooted, ect.

My question is, Incoming and outgoing calls work just fine, except when my Sons school calls. (well anyone working at the school district that calls from a school line) it goes straight to voice mail. doesn't ring or anything. I get a voice mail notification, but no incoming call. I called straight talk and they said it's not their problem it's a problem with the school districts phones. but yet everyone at his school says I'm the only person this ever happens with. I'm confused and not sure what to do. I don't have blocking mode on. I don't have any of the school phone numbers on a reject list. and as I said, it's only the school this happens with. any other incoming call from anyone else goes through just fine. I took a screen shot of what it looks like when his school calls me (Like they did this morning with an emergency.) any ideas on why this is happening and what I can do? I'm uncomfortable with them not being able to reach me. Here's the screen shot: