Dual number SIM

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karthik - 27 Aug 2003 14:13 GMT

Hi

Can anyone tell me what are the requirements for having a dual number
service .
Is it a network dependent feature
What is the 3GPP Spec which talks about dual number SIMS?
Can all phones support dual number SIMs or does the phone need to have
a special protocol stack?

--
Karthik

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Donald Newcomb - 27 Aug 2003 18:07 GMT

> Can anyone tell me what are the requirements for having a dual number
> service .
> Is it a network dependent feature
> What is the 3GPP Spec which talks about dual number SIMS?
> Can all phones support dual number SIMs or does the phone need to have
> a special protocol stack?

I beleive that dual numbers are supported by most SIMs. The problem is
that the carriers see no reason to implement it at the switch. It's
not a popular feature in the USA.

Donald Newcomb
DRNewcomb (at) attglobal (dot) net

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