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Thread: Conditional Call Forwarding issues when phone is unreachable or if I don't pick up

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    Conditional Call Forwarding issues when phone is unreachable or if I don't pick up

    Hey Folks. Next issue here. I use Google Voice for voicemail via Conditional Call Forwarding, and this is super nice as my phone is often off or unreachable. In the past when I was on GoPhone, this worked just fine. It also worked great on cricket. I enabled it once by dialing **004*<gv number># and then basically forgot about it. When my phone was off or out of reach, my Google Voice voicemail would pick up.

    Anyway, now that I'm back on AT&T Prepaid, I tried enabling it using the **004* MMI code. At first I thought it was working -- if I dial my cell number from a different phone, then decline the call on my cell, Google Voice picks up as expected. However, if I dial my cell number from a different phone and my cell phone is off, or if my cell phone is on and I let the call ring through and don't pick it up, it doesn't forward to GV. Instead I get the AT&T voicemail message ("We're sorry, the customer you're trying to call has a voice mailbox that isn't set up").

    I did some research and I see that there are separate MMI codes for handling the situation where the user is unavailable or busy (**61* and **62*). I tried those codes, and they claim to have applied successfully, however I get the same result I described above.

    What gives? Any ideas?

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    I tried that. It only works if I explicitly decline the call. If my phone is off or if I let the call ring through and do not answer, call forwarding does not work.

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    Maybe if you set up AT&T voicemail and use the code to extend the ringtime to the max of 30 seconds, the Google Voice will pick up first.

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    I think I was able to reset all my call forwarding options using an old AT&T Branded Lumia 950. I put my SIM in there, booted it up, went into the settings and enabled/disabled voicemail and call forwarding. Then I took the SIM out and put it back in my Unlocked Galaxy S8 and I could see in the settings menus that the call forwarding options had been reset to forward to AT&T voicemail. For whatever reason, I was now able to change these settings from the phone settings menu rather than using MMI codes, and this seemed to work. Go figure.

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    Bumping this thread because I think I have a similar issue.

    My phone is an unlocked, unbranded Galaxy S9+ on AT&T prepaid with latest updates.

    When Google Voice forwards the call if the phone is ON it goes to GV messaging, when OFF nearly immediately to AT&T messaging. I would prefer all unanswered calls to go to GV messaging regardless if the phone is on or off.

    The call forwarding settings on my Samsung can't be changed or deleted and give me an error message about a network or SIM issue. Is there a workaround?

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    I had a similar problem last week. If the call wasn't declined or the phone was off, the call would be answered by ATT messaging & ask for the 10 digit phone number. I fixed it by turning call forwarding off & then back on again.

    I had to do this on my Moto E4 Plus. Some phones like yours & my Moto G6Play for some reason wont' allow call forwarding changes. All I get is MMI error codes on that phone.

    Hope this helps

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    Quote Originally Posted by Digital Rules View Post
    I had a similar problem last week. If the call wasn't declined or the phone was off, the call would be answered by ATT messaging & ask for the 10 digit phone number. I fixed it by turning call forwarding off & then back on again.

    I had to do this on my Moto E4 Plus. Some phones like yours & my Moto G6Play for some reason wont' allow call forwarding changes. All I get is MMI error codes on that phone.

    Hope this helps
    It certainly describes my situation but still no solution.

    Here is what I get trying to change any of the call forwarding options - https://imgur.com/a/Yfk2mKe

    Maybe AT&T support can help though I've heard its been hit or miss.

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    Quote Originally Posted by actinic View Post
    The call forwarding settings on my Samsung can't be changed or deleted and give me an error message about a network or SIM issue. Is there a workaround?
    Contact tech support level II by calling CS (level I) first, they can manually update those settings in the billing system.
    Don't make me turn this car around.....

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