anyone have trouble setting google voice as their primary voicemail?
when i download the app, and go through the initial setup, i sign in with my account, hit "next", select "do not use google voice to make any calls", hit "next", hit "configure", then i select the "google voice" option instead of "my carrier" - and i get an error message that says "call settings error: failed to retrieve and save current forwarding number settings. do you want to switch to the new provider anyway?"
i select "yes", and then i get another error message that says "call settings error: forwarding number change unsuccessful. please contact your carrier if your problem persists".
anyone else run into this issue? even if you haven't run into this issue, any suggestions for how to get around it? i only want to contact my carrier as a last resort, because i doubt at&t is going to know how/care to solve this issue.
any advice would be appreciated - i only want to use google voice for my voicemail! thanks in advance.
Was having the same problem and found this - worked fine - but needed to reboot:
"Go into the settings at voice.google.com and deactivate your phone and reactivate it. The deactivate step will give a code to enter in your phone...skip that. Next, click on activate this phone and it will give you a string to dial...something like *004*yourgooglevoicenumber#"
Just go online and make sure your phone is active, then enter that string *004*1...#
at what point during this process are you rebooting? i still can't get it to work...
keith3b said:
Was having the same problem and found this - worked fine - but needed to reboot:
"Go into the settings at voice.google.com and deactivate your phone and reactivate it. The deactivate step will give a code to enter in your phone...skip that. Next, click on activate this phone and it will give you a string to dial...something like *004*yourgooglevoicenumber#"
Just go online and make sure your phone is active, then enter that string *004*1...#
Click to expand...
Click to collapse
The first time I did it it didn't work - after reinstalling going through setup, letting it fail, and then doing the steps, and then rebooting it worked perfectly. So yeah, thanks!
I got it to work but it changed my voice mail greeting. Can I not have the generic AT&T greeting while using google visual voice mail.
could somebody please post the EXACT steps, step by step, of how they got it to work? i.e., when you reboot, when you uninstall/reinstall google voice, whether you set it up through google voice settings or call settings in the general phone settings...
i've tried every permutation of every post on here, and i still can't get it to work for some reason.
edit: turns out that, even though it says there was a failure in the forwarding, it still works... when i call my phone, my google voice mailbox picks up - and when i leave a message, google voice gets that message and gives me an alert... strange. people actually got it to setup where they didn't receive an error? it works, but my voicemail settings in the phone's call settings doesn't say "google voice" - it still says "my carrier".
I don't think he's being clear in his post, I don't think there is way to get it to work through the GV app. Dialing the *004*+1#* changes your voice mail provider on the phone, but doesn't change the dialogue box in the phone options, it will still say "My carrier".
I used the *004* method and my phone forwards to GV and notifies of voicemail just as you described. That's how it should work =)
I pretty much followed his post. I visited the GV settings online, deactivated the phone using the codes they gave me, uninstalled the application. Reinstalled the app, then activated the phone on the site using the codes they gave me and rebooted my phone. To test it I called myself and it went straight to google voice, then upon launching the application it went to the inbox instead of the set up. This worked for me, and I don't think I'm missing any steps.
zonk7ate9 said:
I don't think he's being clear in his post, I don't think there is way to get it to work through the GV app. Dialing the *004*+1#* changes your voice mail provider on the phone, but doesn't change the dialogue box in the phone options, it will still say "My carrier".
I used the *004* method and my phone forwards to GV and notifies of voicemail just as you described. That's how it should work =)
Click to expand...
Click to collapse
this is what i needed to hear all along.
i was waiting for the settings to take effect in the call settings (i.e., switch from "my carrier" to "google voice"), but this isn't going to happen on our phone.
however, even though this doesn't happen, google voice still becomes your primary voicemail.
thanks for making that clear!
Thanks for the tips after spending 25 minutes on the phone with the att rep who didn't help one bit this worked perfectly.
Sent from my HTC One X using xda premium
Thanks for this!! Worked GREAT!
Sorry for not being clear - it still says my carrier - but works with GV... same thing on my phone.
I had the same issue as well.
Mine is now set to "Google Voice" under Voicemail Service. This is even after a reboot but GV voicemails were fine even when set as "My carrier". So not sure why it changed.
I just made sure under Settings -> Call -> Call forwarding that my GV number was set for
"Forward when busy"
"Forward when unanswered"
"Forward when unreachable"
When I select GV as Voicemail Service, it gave me the same error but it stayed. Strange. But GV has always worked for me no matter what it displayed. Long as it was set properly under the "Forward ..." options.
Thanks this was bugging me!
jlaudio27 said:
Thanks this was bugging me!
Click to expand...
Click to collapse
In case people didn't realize the Google Voice setup just sets up forwarding nothing else. Also forwarding is at the line level and not device. So if you take the SIM out and put it in an iphone or anything else it will continue going to Google Voice until you change it manually. Just FYI,
Sent from my HTC One XL using Tapatalk 2
Related
I'm running CM 6.1 so I don't have Sprint VMM and I setup Google Voice using my cell number and went through all the steps to activate Google Voice, I then created a greeting but whenever I call my number and let it go to the voicemail all I get is "Could not complete your call, please try again." The phone I am calling my cell with is not broken or anything like that so I know it's something to do with Google Voice. What am I missing?
What color did you want it? I'm having trouble understanding what you are saying here.
Will probably be better understood here:
http://forum.xda-developers.com/forumdisplay.php?f=650
Basically, I setup Google Voice on my cell phone but when I call my cell phone it doesn't go to any voicemail it just says "Could not complete your call, please try again."
coppertop4646 said:
Basically, I setup Google Voice on my cell phone but when I call my cell phone it doesn't go to any voicemail it just says "Could not complete your call, please try again."
Click to expand...
Click to collapse
What maybe the issue and what was in my case, go to settings call settings and then voice mail number, mine was like *38 but after I put in my number everything fine.
Sent from my HERO200 using Tapatalk
You also need to go to the voice homepage on your pc and activate it there for your phone.
Sent from my CDMA Hero. I got some hot Froyo-on-Hero action here!
On google.com/voice my phone number is listed under "Mobile" and it says it is activated. My number is also correct in the google voice application on my phone but when I call my phone and let it continually ring, it still acts like I have never setup a voicemail and just says "Could not complete your call, please try again."
Need some more information.
What is your carrier?
You do have Google Voice set up to send all calls to your cell phone, right?
Did you go to voicemail settings in your phone and change your voicemail provider?
Yes it says my voicemail provider is google voice but I think I found the problem. Under Call Settings > Voicemail Settings it says Voicemail Number 9165381466 so I press it to change it and it says "To set up Google Voice as the voicemail provider on your phone you need to enter a special provisioning code." So I dial the code it tells me to dial and everytime I call the provisioning code it connects for 2 seconds then disconnects.
Sprint is my carrier.
And I just want Google Voice to receive the voicemails that people would normally leave on my phone. Basically I just want it to act like Sprint VVM. And I'm running CM6.1 if you're wondering why I just don't use Sprint VVM in the first place. If I can't get voice to work I guess I'll just flash VVM.
coppertop4646 said:
So I dial the code it tells me to dial and everytime I call the provisioning code it connects for 2 seconds then disconnects.
Sprint is my carrier.
And I just want Google Voice to receive the voicemails that people would normally leave on my phone. Basically I just want it to act like Sprint VVM. And I'm running CM6.1 if you're wondering why I just don't use Sprint VVM in the first place. If I can't get voice to work I guess I'll just flash VVM.
Click to expand...
Click to collapse
I set mine up to work like that. You only have to call the "provisioning code" once. It is just like forwarding, it sets it up to redirect calls to google voice if you don't answer. I have Sprint, also, and loved the VVM, but google voice works great.
I know how to fix this I wrote a post on this about a year ago. Sprint voicemail is terrible. This same thing happened to me and i didnt realize people couldnt leave me voicemails for about 2 months lol. Forget the provisioning code it means nothing after you do this. Listen close because heres what you do....
1. Go to google.com/voice on your computer and at the top right it says settings.
2. Highlight settings then click the drop down arrow and select voice settings.
3. The 1st tab says phone/your google voice number, select that and change your google voicemail number.
4. Once you change it, you have to delete google voice from your phone then reinstall it to finish this. Go thru process as normal when setting it up.
5. Now the final step, go to settings on your phone, then CALL settings then make sure voicemail service is set to GOOGLE VOICE, and right under that theres a tab in CALL settings that says VOICEMAIL SETTINGS. Select that and you will see VOICEMAIL NUMBER, press that once and you will get a pop up box that says a bunch of junk just hit ok and open google voice once and it should be done.
Hope this helps you.
Ok that worked...thank you. One last question, where do I go to disable the emails that Google Voice sends me everytime I get a voicemail?
Edit: Nevermind I found it
coppertop4646 said:
Ok that worked...thank you. One last question, where do I go to disable the emails that Google Voice sends me everytime I get a voicemail?
Edit: Nevermind I found it
Click to expand...
Click to collapse
Glad that helped man
Sent from my HERO200 using Tapatalk
I am using/attempting to use Google Voice as my voicemail system and I continue to be 'logged out' of the system and keep being forced to Set up Google Voice anytime I reboot.
I can go through the steps for set up fine until I get to Set Up Voicemail. There is a Configure button which I push and am I'm given the selection of using Google Voice or My Carrier. I choose Google Voice and then put in the number for my Google Voice account. Then I get a message that says 'No Changes were made.' I click OK and then I'm taken back to the 'Set up Voicemail' screen.
I have the option to 'Skip', which I have to do to finish the setup. At this point I receive my voicemail notifications until I reboot my phone, then I have to do this process again.
Has anyone else encountered this? Oh and I am on ATT. I am running Infused 1.53, but I originally set this up when I was stock and flashing Infused did not changed anything.
Thanks in advance!
yeah, took me a while to figure out but the app isn't running the mmi code but you can run it manually.
go into voice.google.com or www.google.com/voice click on you're voicemail access number or the phone tab. make you should see you're cell phone number and carrier in there. if not there should be a way to add them. next to the cell number it will say in blue "activate mailbox" or something to that effect. xlixk it and it will give you an mmi code. then from the cell phone type the code into the dialer and hit the call button. you should get a message that conditional call forwarding has been setup. test it by calling yourself feom another phone and rejecting the call. once you leave a message refresh the google.com/voice page and it should now show deactivate mailbox as an option. the app should show a new vm and transcribe it for you.
Did it all from the laptop and had no issues.
Sent from my SAMSUNG-SGH-I997 using XDA App
Good deal! Thanks!
when i am receiving a call it goes to my att voicemail instead of gvoice. when i try changing my call voicemail settings to google voice, i get an error that says. could not change could not change your call forward settings. failed to retreive and save current number forwarding settings.
When i bought my hox a few months ago, i had an issue getting google voice to work. after reading the thread on xda i managed to get it working. however, i just noticed that my google voice is no longer working, and i think it stopped working after my phone updated to 4.0.4 when i tried the same instructions that i used in the old xda thread. it didnt work.
edit: gvoice started working again. played with the settings for awhile, not sure what i did to make it work.
I've given up on gv because everytime I flash a rom it screws up gv and I got tired of having to jump through hoops to get it set up again. Sad because I really liked it.
Sent from my Nocturnalized Beast
E.Cadro said:
I've given up on gv because everytime I flash a rom it screws up gv and I got tired of having to jump through hoops to get it set up again. Sad because I really liked it.
Sent from my Nocturnalized Beast
Click to expand...
Click to collapse
I'm about to do the same.
Sent from my HTC One X using xda premium
Google Voice still works fine even on 4.0.4, but you can't simply choose it in your phone's settings. Instead, after you download and install the app, open it, and go through the normal configuration. You'll choose to set Google Voice as the voicemail app, it'll reject it, etc. After it's done, you need to set call forwarding by dialing *004*1-area code-google voice number-#. Then hit call. It'll briefly flash an imei code message, and then say call forwarding successful.
For instance, if my google voice number was 321-456-7890, I would dial *004*13214567890#.
That's it. If you then look in your dialer settings, it's still not going to show google voice as your voicemail app, but it doesn't matter. It will function fine. You don't have to do anything else.
I'm somewhat of a flashoholic, and I do the exact same procedure every time I flash a new rom, and have never had a single problem with google voice, including on 4.0.4 based roms.
slippers67 said:
Google Voice still works fine even on 4.0.4, but you can't simply choose it in your phone's settings. Instead, after you download and install the app, open it, and go through the normal configuration. You'll choose to set Google Voice as the voicemail app, it'll reject it, etc. After it's done, you need to set call forwarding by dialing *004*1-area code-google voice number-#. Then hit call. It'll briefly flash an imei code message, and then say call forwarding successful.
For instance, if my google voice number was 321-456-7890, I would dial *004*13214567890#.
That's it. If you then look in your dialer settings, it's still not going to show google voice as your voicemail app, but it doesn't matter. It will function fine. You don't have to do anything else.
I'm somewhat of a flashoholic, and I do the exact same procedure every time I flash a new rom, and have never had a single problem with google voice, including on 4.0.4 based roms.
Click to expand...
Click to collapse
I've only done all this once since getting this phone. Ive flashed many ROMs since. All I do when I get a new ROM setup is install voice, allow access, go to call -> settings and set Google voice as voicemail. It will "fail" but my voicemail always redirects to GV.
But excellent advice for those who haven't done this at all.
Sent from my HTC One X using xda premium
There's another way to do this. It doesn't change the voicemail number but it does work.
1. Open settings
2. Go to "Call"
3. open "Call forwarding", it will say Reading settings... for a few seconds.
4. Change "Forward when busy", "Forward when unanswered", and "Forward when unreachable" to your OWN google voice number.
5. Ensure that "Always forward" is "Disabled"
6. Profit
That way you're forwarding to google voice even if the voicemail settings are not correct.
Cheers
My phone is setup to use Google Voice for voicemails, but as of a couple days ago VMs are no longer going to GV and instead goes to the standard verizon voicemail.
Now when someone leaves me a voice mail, I get a notification in the notification bar, but I get the standard VM notification, not the GV one and nothing ever shows up in GV. Ive set my phones "voicemail service" setting to "my carrier" and deactivated GV (by dialing *73) and then able to access the Verizon VM via *86. I then tried reactivating GV by dialing *7 then my GV number and uninstalled/reinstalled GV app on my phone, but people are still directed to the verizon VM and not GV.
The only thing Ive changed in the last couple days is Ive applied the wifi prompt hack from here and the Wifi Toggle mod from here (which Ive since run the "return to stock" package).
Im running rooted stock ICS and below is a screenshot of the notification.
Any help is greatly appreciated!
Thanks.
In call settings, is Google voice an option?
Sent from my SCH-I535 using xda premium
There is and it's currently selected.
I have the same problem - callers hear "this voicemail has not been setup" even though my GV greeting is set.
edit - to OP, make sure you've activated your phone number for GV voicemail in the google voice website.
Are the phone and correct number listed in Google Voice settings (online) as having been activated for Google voicemail?
You mentioned using *7GoogleVoiceNumber - isn't it supposed to be *71GoogleVoiceNumber ?
- ooofest
I have had this happen once or twice, each time I would have to dial *71<then your google voice number> and hit the send call button. This basically tells Verizon to forward missed calls to your GV voicemail.
You can also call Verizon and ask them what your call forwarding is set to, and they can fix it there as well.
For what it is worth though, I have been able to use the setup Voicemail feature within Google Voice, it would always come back with some kind of carrier issue.
Try the following 3:
*71 GV #
*90 GV #
*92 GV #
Ive verified Google Voice is configured for voice mails via the web site (which you can see in the 1st screenshot below). Ive also verified my voicemail carrier is set to Google Voice and that it matches my actual google voice number (seen in screenshots 2 and 3).
Ive also dialed the 3 numbers in the previous post (*71, *90, *92 + GV#) and verified voicemails are still being left on verizon. Ill call them tomorrow to verify my phone is in fact fowarding as it should be though.
Finally, just to make sure GV was actually working I also verified that calling my actual google voice number and leaving a voicemail does show the notification on my phone in the GV app.
Really not sure how in the heck this happened, like I said, Ive been using this without issue for months, and it wasnt until a day or two ago that this started happening. Is it possible that either of those hacks/mods applied caused this? I didnt realize until after I applied them that some mods require a deodexed ROM, so wasnt sure if that was the culprit.
Hoping to figure this out rather then revert to an old nandroid backup.
Thanks again all, really appreciate the responses so far.
timofcourse said:
Ive verified Google Voice is configured for voice mails via the web site (which you can see in the 1st screenshot below). Ive also verified my voicemail carrier is set to Google Voice and that it matches my actual google voice number (seen in screenshots 2 and 3).
Ive also dialed the 3 numbers in the previous post (*71, *90, *92 + GV#) and verified voicemails are still being left on verizon. Ill call them tomorrow to verify my phone is in fact fowarding as it should be though.
Finally, just to make sure GV was actually working I also verified that calling my actual google voice number and leaving a voicemail does show the notification on my phone in the GV app.
Really not sure how in the heck this happened, like I said, Ive been using this without issue for months, and it wasnt until a day or two ago that this started happening. Is it possible that either of those hacks/mods applied caused this? I didnt realize until after I applied them that some mods require a deodexed ROM, so wasnt sure if that was the culprit.
Hoping to figure this out rather then revert to an old nandroid backup.
Thanks again all, really appreciate the responses so far.
Click to expand...
Click to collapse
I had this problem too... On my Galaxy Nexus I could just play back my voice mails right through my main phone applications phone log but now with this phone I had to uncheck the box in google voice (on your phone) that says "Voicemail Display" allowing you to view and playback your voicemails from your call log. Soooo, I get all of my notifications now but they are through the google voice app instead of my phone app... Does this make any sense to you cause I am really tired but I tried everything and this was the best option... So uncheck the box for "Voicemail display" in google voice settings on your phone and you should be good to go if that is what you are looking for?? Also you can go right to your account online and make sure it is setup to forward to your gv number... Just go to "My Verizon and then My plans and services and then you will see a image at the top right of the screen saying "I want to" and hit the plus sign and you will see the options for forwarding your number.... Again, hope this helps a little but I don't know how your setup was before so I am just basing it on what my setup is...
shojus said:
I had this problem too... On my Galaxy Nexus I could just play back my voice mails right through my main phone applications phone log but now with this phone I had to uncheck the box in google voice (on your phone) that says "Voicemail Display" allowing you to view and playback your voicemails from your call log. Soooo, I get all of my notifications now but they are through the google voice app instead of my phone app... Does this make any sense to you cause I am really tired but I tried everything and this was the best option... So uncheck the box for "Voicemail display" in google voice settings on your phone and you should be good to go if that is what you are looking for?? Also you can go right to your account online and make sure it is setup to forward to your gv number... Just go to "My Verizon and then My plans and services and then you will see a image at the top right of the screen saying "I want to" and hit the plus sign and you will see the options for forwarding your number.... Again, hope this helps a little but I don't know how your setup was before so I am just basing it on what my setup is...
Click to expand...
Click to collapse
While I didnt really follow the first part of your post, I did try changing forwarding via My Verizon as you mentioned and sure enough, that did the trick! For whatever reason the * commands must not have been working, but all works as it should now.
Thanks!
Yesterday 1 call went to my Verizon voicemail. All the rest went to Google Voice. It was late in the evening (around 6pm est). Working fine this morning. Someone must have pulled the wrong switch again at the mothership.
timofcourse said:
While I didnt really follow the first part of your post, I did try changing forwarding via My Verizon as you mentioned and sure enough, that did the trick! For whatever reason the * commands must not have been working, but all works as it should now.
Thanks!
Click to expand...
Click to collapse
GREAT! Glad I could help somewhat...
JawaH8r said:
Yesterday 1 call went to my Verizon voicemail. All the rest went to Google Voice. It was late in the evening (around 6pm est). Working fine this morning. Someone must have pulled the wrong switch again at the mothership.
Click to expand...
Click to collapse
When I first configured my Verizon line and Android phone for Google Voice (with my Droid Incredible), it turned out that I had to call Verizon to have them properly enable forwarding because the * codes were not working. They said there was a configuration problem with my account, which took a couple levels of Support to eventually fix. So, I guess that means they could accidentally screw up anyone's account after-the-fact, too.
- ooofest
In phone settings, under voicemail provider, the only option I have is Voice Mail, there's no Google Voice option like they're used to be. I uninstalled and reinstalled Google Voice, went through setup, still no option under voicemail provider. All voicemails open with the standard phone app and it dials into voicemail...
Does anyone know what is wrong? Thanks.
The stock Samsung dialer will never show Google Voice voicemails. You still have to either use the Google Voice app for that, or the Google Dialer. Set it up with conditional call forwarding with your carrier and you'll be set.
entropism said:
The stock Samsung dialer will never show Google Voice voicemails. You still have to either use the Google Voice app for that, or the Google Dialer. Set it up with conditional call forwarding with your carrier and you'll be set.
Click to expand...
Click to collapse
It has shown in the stock dialer in the past. I think maybe the new Google Voice update broke something? Because after going through proper setup after reinstalling Voice, I can't get it to work at all. Stock phone app notifies me of voicemails, clicking that takes me to my dialer where I have to call in to check voicemails, and that sucks... How do you set up conditional call forwarding, within the Voice app? I've never had to do that before, and I've been using Voice since the beginning.
Again, to be clear, I'm not looking for Google voicemails in the stock dialer, like in hangouts. Open phone app, more, settings, scroll down to Voicemail - Service Provider. Normally, Google Voice is listed there as an option (instead of using your stock voicemail, you can select to use Google Voice for voicemail). This is what's missing. So every time I get a voicemail, it goes to the one where you have to DIAL into your voicemail! No voicemails go to Google Voice.
OK, I will repeat, because I must not have explained it properly:
You must set up conditional call forwarding. This is step #1, and it absolutely must be done.
Your carrier: T-Mobile Change carrier
Note: This feature does not work with T-Mobile prepaid phone plans.
Follow these steps to have your mobile phone use Google Voice for voicemail instead of your carrier's voicemail. You can always go back to using your carrier's voicemail later if you want, by entering another code. Learn more here.
Enter the following exactly as written, as if you are dialing someone:
**004*1(your area code & number here)#
Press "Send" or "Call" on your phone to dial that number. When you see the confirmation message on your phone, you are done!
Got an error? Learn more
Click to expand...
Click to collapse
So if your number was (123) 456-7890, you would dial **004*11234567890#
Step 2 - Go into your dialer settings and look for your call forwarding settings. You should see options there.
For always forward, select off. For the other three, put in your Google voice number.
There. Done. Should work perfectly now. You can view your voicemails in the Google voice app.
entropism said:
OK, I will repeat, because I must not have explained it properly:
You must set up conditional call forwarding. This is step #1, and it absolutely must be done.
So if your number was (123) 456-7890, you would dial **004*11234567890#
Step 2 - Go into your dialer settings and look for your call forwarding settings. You should see options there.
For always forward, select off. For the other three, put in your Google voice number.
There. Done. Should work perfectly now. You can view your voicemails in the Google voice app.
Click to expand...
Click to collapse
I appreciate the help, I'll do this later today when I have a chance. I will say, though, that these steps are ABSOLUTELY not necessary for my T-Mobile Galaxy S7 Edge. For some reason, my fiance's regular S7 won't use Google Voice. So again, I'll try these steps later for her, thanks!
Hi,
I am having the same problem. I followed the instructions of dialing **004*1 (area code plus number) into my new T-Mobile Galaxy S7 phone and got: "the number you have dialed is not in service.
Have I followed the instructions incorrectly?
thanks for your help.
eJessica said:
Hi,
I am having the same problem. I followed the instructions of dialing **004*1 (area code plus number) into my new T-Mobile Galaxy S7 phone and got: "the number you have dialed is not in service.
Have I followed the instructions incorrectly?
thanks for your help.
Click to expand...
Click to collapse
Don't forget the pound sign after your phone number. This method did work for my fiance's S7. I never had to go through all this with my S7 Edge, though.
I have the same problem. I tried the code above and get this error:
Call forwarding
Connection Problem or invalid MMI code.
I had the same issue. Noticed recently I wasn't getting my Google Voice voicemails when my phone started telling me to install Verizon's visual voicemail to view my voicemails. Setting Google Voice also wasn't an option all of a sudden in the phone app, as it had been for years. I also noticed when I opened the new Voice app on my phone, it promoted me to pick a new Voice number, so the recent updates must have broken something.
Anyways, this is how I fixed it.
1) On a PC, go to voice.google.com (log in, if you aren't already)
2) Hit the menu button, scroll down, and select 'Legacy Google Voice' (should open in a new window)
3) In the new window, you should see your Voice number and then your cell number below that
4) You should see a link that says 'Activate Google voicemail on this phone'. Click that.
5) A box will open telling you to dial and call *71(Your Google Voice number)
6) You should be good to go, I placed a test call and it worked like it always had before except for an a couple extra rings before voicemail kicked in.
I also did the following to get it to go straight to voicemail after the normal number of rings...
Under your cell number, hit 'Edit' > 'Show Advanced Settings' > 'Forwarding Options' > Select 'Go straight to voicemail' > 'Save'
YMMV but I hope this helps someone. It certainly had me stumped for a couple days lol.
Call forwarding
I have a new SM j32 7T1 and it won't let me set call forwarding to anything but the pre-programmed MetroPCS voicemail everytime I put in my other phone number which I have two phones it says there's a network error which I don't think is an error I think it's the software will not allow me to put in a different number
Yeah, I got that "Connection Problem or invalid MMI code" code too after typing in the **004... code. However, I was able to successfully set up forwarding to my Google Voice by following the second step of instructions given. (Note: I recently bought this Galaxy S7 unlocked, previously T-Mobile carrier and need to set Google Voice as my voicemail - it was all set up on my previous phone, so I've done everything in Google Voice to set it up, and I had to of course install Google Voice on my new phone). Anyway, here's the instructions for setting up Google Voice as my voicemail on Galaxy S7:
(1) Tap phone icon to open phone app
(2) Tap 3-dot menu upper right corner
(3) Select: Settings
(4) Under CALL SETTINGS section select: More Settings
(5) Select: Call forwarding
(6) As the other person's instructions stated: leave the "Always forward" setting turned off, but tap the other 3 settings ("Forward when busy", etc.) and enter your Google number. Voila, all calls that you don't answer, for whatever reason, will go to your Google Voice where the caller will record a message, and you'll receive it via your Google Voice app.