[Ecrit] RE: review of phone-bcp (was: Reviewers of Phone BCP & Framework)

["Brian Rosen" <br at brianrosen.net>]

Alexander

I'm finishing an update to -framework and -phonebcp today and I resolved
most of the comments you provided except as noted below:

> - Section 5: The "one-button" thing: How broad is that opinion of PSAPs?
> I'm just curious whether that is the opinion of a few, or the vast
> majority of PSAP operators agrees on that...
This is a very widely held view.  It used to be common to have a one button
emergency call on early mobiles.  The incidence of false calls was very
high, and the emergency authorities prevailed on the mobile operators to get
rid of that feature.  If it takes a sequence, it's okay, but one button is
very bad.  I don't know any PSAP person who is in favor of one button
emergency call features.

 
> 
> - Section 5: "Home dialstring": I think keeping the home dial string
> poses quite some problems, because they are merged into the local dial
> plan of the country/region visited. For example, Vienhe LIS is
optional.

>    > Question is what if UA doesn't support LoST? I guess it can't really
>      forward the call to proxy to simply obtain PSAP URI could it? As it
>      would probably end up making the actual emergency call...
The text has been improved in this area, so I may have resolved this
completely.  Generally, the proxy looks for all possible cases: no dial
string recognition, dial string recognition but no LoST, LoST.  It fixes the
first two one way or another.  It routes the third per normal SIP
procedures.



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