Re: [Sip-implementors] [Sip] SIPit 20 survey summary

[Hannes Tschofenig <[e-mail]>]

Hi Klaus,

no matter how you call it but there will always be a (VoIP) application 
service provider involved in the emergency services case.
I guess you refer to the SIM-less emergency services case (or 
unauthenticated emergency network access scenario) where the access 
network provider (ASP and/or ISP) also needs to be the (VoIP) 
application service provider.

Ciao
Hannes

Klaus Darilion wrote:
>
>
> Mark R. Lindsey wrote:
>> It is much more reasonable to expect the service-provider/enterprise 
>> to implement the location conveyance. They'd add the location in 
>> their proxies/B2BUAs/ALGs. For example, an enterprise building ALG 
>> could add its location before sending the call to an SP.
>
> What if there is no service provider at all? SIP phones may perform 
> emergency calls on there own - without the need of a service provider. 
> Otherwise - if your service provider is down - you can't make 
> emergency calls.
>
> regards
> klaus
>
>
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