nanog mailing list archives
Re: potpourri (Re: Clearwire May Block VoIP Competitors )
From: Owen DeLong <owen () delong com>
Date: Fri, 01 Apr 2005 12:45:07 -0800
Actually, that's an interesting point... What if SIP based phones could "know" do the following: 1. If they know where they are, include: X-Lat: N/S dd:mm:ss.sss X-Lon: E/W ddd:mm:ss.sss In the SIP headers. 2. If they don't know where they are, include: X-Location: unknown 3. 911 is automatically mapped to: SIP://e911.emergency.int E911.emergency.int, would be resolved by ANYCAST DNS servers operated by 911 centers. Ideally, each VOIP capable 911 call center would operate one of these. It would return the IP address of that 911 call center's SIP proxy. Sure, it's not perfect, but, your topologically closest 911 call center is not unlikely to be at least somewhat geographically closest as well. This provides at least as good a service as cell phones without GPSs, and, where possible, as good as cell phones with GPSs. Just random thoughts on the subject. Owen -- If it wasn't crypto-signed, it probably didn't come from me.
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- Re: potpourri (Re: Clearwire May Block VoIP Competitors ), (continued)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Mikael Abrahamsson (Mar 31)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Eric A. Hall (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Eric A. Hall (Mar 31)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) David Barak (Mar 31)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Paul Vixie (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Michael . Dillon (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Niels Bakker (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Michael . Dillon (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Niels Bakker (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Niels Bakker (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) just me (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Owen DeLong (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Mikael Abrahamsson (Mar 31)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) David Barak (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Adi Linden (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Bill Nash (Apr 01)
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- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Jay R. Ashworth (Apr 01)
- Re: potpourri (Re: Clearwire May Block VoIP Competitors ) Adi Linden (Apr 01)
- Positioning technology Roy (Apr 01)
- Re: Positioning technology Joel Jaeggli (Apr 01)
- Re: Positioning technology Christopher L. Morrow (Apr 01)
- Re: Positioning technology Joel Jaeggli (Apr 01)
- Re: Positioning technology Christopher L. Morrow (Apr 01)