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"Call Forwarding: Connection problem or invalid MMI code."

For the last two years, every time i dial an MMI code for any call forwarding (https://www.geckobeach.com/cellular/secrets/gsmcodes.php), I get "XXX Forwarding: Connection problem of invalid MMI code". 

If I use the phone app's settings (https://www.androidauthority.com/call-forwarding-android-870778/), I get "Call settings error.  Network os SIM card error". 

I get similar results if I pop my SIM card into an iPhone X. 

This means that I cannot control my phone when traveling, I cannot redirect it to crick et visual voice mail or use any other visual voice mail, except to call customer service spend multiple hours watching them go through their inane menus, gratuitously talk down to me about how to turn on these features myself, before actually doing something, if I am not cut off along the way.

What are my options at this time?

I am told I have to plunk down some money to buy a new SIM.  If I am going to do that, I might as well switch providers.....

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3 Replies
Moderator
Moderator

Re: "Call Forwarding: Connection problem or invalid MMI code."

@kvaradhan3 

 

We would like to look into this further for you. Please reach out to our support team on Facebook (m.me/cricketwireless) or twitter (@cricketsupport) with the details of your issue.

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Re: "Call Forwarding: Connection problem or invalid MMI code."

I pinged you on twitter.  What is the round trip time I should expect a response on that forum?

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Re: "Call Forwarding: Connection problem or invalid MMI code."

ALso, please clarify what additional details you would need. THanks

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