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iPhone client issue when calling external number

Discussion in 'iOS' started by XcamaroX, Mar 22, 2017.

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  1. XcamaroX

    Aug 25, 2015
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    My iPhone works fine via 4G and WiFi if I make calls to our internal extensions, but when I try to dial an external number, for example my friend's number, or my house, when I type the number and press on dial, it hesitates for a millisecond and it takes me back to dial the number. If I dial an extension it works fine.

    It does this from the WiFi AND the 4G connection. The phone is On Hook (green) and Available.

    Any help will be appreciated.

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