[SIPForum-discussion] [Sip-implementors] [Sip] SIPit 20 survey summary

[Klaus Darilion]

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