Re: [RFCv2] doc: Proposal for LTE/IMS API

[Marcel Holtmann <marcel@holtmann.org>]

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Hi Michael,

> >> In theory there might be more than one IMS APN for a operator,
> 
> >> but I really don't see this as a real life scenario for this.
> 
> >> If anyone disagrees please speak out and explain...
> 
>  
> 
> One such scenario is the in-vehicle use model, where the ISP provides
> network connectivity via one APN and the auto manufacturer has network
> connectivity through a separate, private, and independent APN.
> Connectivity, billing, bandwidth, reliability, roaming etc are all
> independent for each network. For example, auto manufacturer X may
> contract with ISP Y for remote access to the car, while the owner of
> the car may prefer ISP Z for personal use.

and this case actually has two fully independent radio modules. One for
the consumer and one for the car manufacturer. And the car manufacturer
GSM/UMTS hardware has normally a builtin SIM card that can not be
removed. For obvious reasons of misuse.

Regards

Marcel