iPhone 6 cannot call 1-800 numbers

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  • Updated 1 month ago
My telephone keeps saying “call failed” when I try to reach certain 1-800 numbers. Especially frustrating as it’s related to banking. I’ve done a factory reset, but that didn’t help. Any advice would be appreciated. Thank you
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brenda

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Posted 1 month ago

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Goran, Mobile Master

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Try taking out your sim card and putting it back in. You can also try putting the sim card in another phone to see if the problem follows. Let us know!
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BobTheElectrician

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Try pre-pending *67 before the 800 number. (dial *671800#######).

Solved a problem I had contacting Royal Bank from VoIP phone.

https://www.reference.com/technology/star-67-telephone-ba1deaba3fb45e1a
(Edited)