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"Dennis Ferguson" <dcferguson@pacbell.net> wrote in message
news:slrng8f2gu.57.dcferguson@akit-ferguson.com...
> On 2008-07-23, DevilsPGD <spam_narf_spam@crazyhat.net> wrote:
>> In message <Iishk.15991$mh5.10641@nlpi067.nbdc.sbc.com> DTC
>><DTC@no_spam_nothing_here.foob> wrote:
>>
>>>It still works for their ATT phones, but the manger upgraded
>>>to an iPhone and the ATT VM no longer recognizes his number.
>>>After you input the [cellphone number], is says its not a valid
>>>number, but his iPhone can still call his VM.
>>>
>>>Any clues?
>>
>> Due to visual voicemail, the voicemail systems are independent. If
>> you
>> have another phone, you can swap SIMs to pry the numbers out.
>>
>> In short, what you need to do is pull the iPhone's SIM card, pop it
>> into
>> another GSM phone.
>>
>> Press and hold "1" until
>> voicemail dials, then hang up, and check the recent calls.
>>
>> Most phones will reveal the number, although I did have one (Sony
>> w810i?
>> maybe, not sure which phone it was anymore) that just showed
>> "voicemail", in that case, adding it to the address book revealed the
>> number.
>
> You could also look at the "Call Forward" or "Call Divert" setting.
> The number it is forwarding to "If Unavailable" should be the
> voicemail
> number.
>
> Dennis Ferguson