RE: [Sipping-emergency] Re: [Sipping-emergency] draft-schulzrinne -sipping-emergency-req-00

["Peterson, Jon" <[e-mail]>]

I also looked around a bit on the web to see how the term 'last-mile' was
being used. This seems typical of the definitions I could find:

The last mile refers to the distance between the subscriber and the
telephone company's central office, or the subscriber and the neighborhood
node of the cable company.

http://cablingdb.com/GlossaryPages/GlossaryL/Last_Mile.asp

Refers to the telecommunications technology that connects the customer's
home directly to the cable or telephone company. When used as an adjective,
spelled last-mile, as in "the last-mile technology." 

http://isp.webopedia.com/TERM/L/last_mile.html

- J

> -----Original Message-----
> From: Peterson, Jon [mailto:[e-mail]]
> Sent: Tuesday, February 25, 2003 1:33 PM
> To: 'Henning Schulzrinne'; King, Kimberly S.
> Cc: [e-mail]
> Subject: RE: [Sipping-emergency] Re: [Sipping-emergency]
> draft-schulzrinne -sipping-emergency-req-00
> 
> 
> 
> Heh, right. I've been considering the 'last mile' chunk to be 
> between the
> end user (currently, their POTS phone - in the future, their 
> IP phone) and
> the selection router - that's how I thought we were using the 
> term in our
> conf call, and hence my confusion (I was contrasting the 
> terms 'last mile'
> with 'trunking replacement' on the call). The use of the term 
> 'access' in
> the title of section 4 made me think you were describing the 
> access portion
> of the network (i.e. copper to the home, etc). Your 
> suggestion in the intro
> to the section that the transport could be analog or ISDN but might be
> replaced with DSL certainly supported that reading. I thought the term
> 'trunking' was used casually there.
> 
> I guess looking more closely at that section, requirement M-7 
> and a few
> others might have tipped me off that these requirements were about the
> trunking replacement. The definition in section 3 of 'last 
> mile emergency
> service' also is a pretty good indicator. I don't know if 
> this would have
> been unclear to someone who hadn't been on our conference 
> call. I imagine
> that paraphrasing the definition of 'last mile' from section 
> 3 in the intro
> to section 4 would clear up any conceivable ambiguity. I also 
> would avoid
> using the term 'access' in the title of section 4.
> 
> From my perspective anyway, what I'm concerned about is that 
> the full e2e
> solution be bundled separately from the more immediately 
> achievable work.
> Whether or not these two are in separate sections is less 
> material to me,
> but ultimately, we know that the section 4 solution is not 
> depending on
> geopriv, but the later material is. I think there is value in 
> having the
> section 4 work go forward on its own merits, and fully specifying this
> solution - I know you think this is trivial, but to me, trivial means
> achievable. :) Putting the later e2e work in a separate document would
> remove any geopriv dependencies for the section 4 work.
> 
> - J
> 
> > -----Original Message-----
> > From: Henning Schulzrinne [mailto:[e-mail]]
> > Sent: Tuesday, February 25, 2003 7:06 AM
> > To: King, Kimberly S.
> > Cc: Peterson, Jon; [e-mail]
> > Subject: Re: [Sipping-emergency] Re: [Sipping-emergency]
> > draft-schulzrinne-sipping-emergency-req-00
> > 
> > 
> > Maybe we're getting closer to the source of the confusion... 
> > During the 
> > teleconference, I had associated 'last-mile' with the 
> > recently-completed 
> > NENA effort, which only deals with what section 4 describes. 
> > Since it's 
> > the last mile before reaching the PSAP/ECC, I used that term. Maybe 
> > others were thinking of what I'd consider 'first-mile', 
> i.e., from a 
> > VoIP phone to a PSTN gateway?
> > 
> > That might explain a few of the rounds of discussion... 
> Jon, Allison: 
> > where's first and last? :-)
> > 
> > King, Kimberly S. wrote:
> > > Henning,
> > > 
> > > 
> > >>"In last-mile access, an ECC replaces an analog (CAMA) or 
> > >>digital (ISDN) 
> > >>trunk with packet-based access,
> > >>typically over one or more high-speed access lines such as DSL 
> > >>or leased 
> > >>lines."
> > >>
> > >>Suggestions on how to make this clearer are welcome.
> > > 
> > > 
> > > 
> > > I believe it isn't as clear because it disorients the 
> > reader.  The last mile
> > > (reader is thinking from the perspective of being the client) has
> > > packet-based access (access puts the reader in the 
> > perspective of being on
> > > the "server" side).
> > > 
> > > I can't completely re-word it as I'm not totally clear what 
> > you are trying
> > > to say but I'll take a shot at it.
> > > 
> > > "In the last mile situation, instead of calls being 
> > terminated by analog
> > > (CAMA) or digital (ISDN) trunks, they are terminated by 
> > high-speed DSL or
> > > leased line packet-based solutions."  
> > > 
> > > Kimberly
> > 
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