Alex, I can't speak to what's deployed, but I know that the IIT has been working on location awareness for mobile users for a long while
This is from Cluecon 2018: https://youtu.be/A8i2psbeYT4 There was a similar session at Cluecon 2019, but it was not recorded. Michael Graves mgra...@mstvp.com o: (713) 861-4005 c: (713) 201-1262 sip:mgra...@mjg.onsip.com -----Original Message----- From: VoiceOps <voiceops-boun...@voiceops.org> On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 3:37 PM To: voiceops@voiceops.org Subject: Re: [VoiceOps] Fwd: 911 and Softphones This may be a stupid question, but I know absolutely nothing about mobile: I'm deep inside an apartment building, and there are no windows on the lower level. How does my phone know where I am? I've heard much about deducing it through WiFi and/or Bluetooth, but how? -- Alex On Thu, May 14, 2020 at 01:27:05PM -0700, Carlos Alvarez wrote: > GPS is useless inside most buildings. That's why mobiles have A-GPS, > which is assisted by wifi and bluetooth. Even in homes, GPS signals > are mostly blocked. In a commercial building, almost guaranteed to be > blocked. > > On Thu, May 14, 2020 at 1:23 PM Aaron C. de Bruyn <aa...@heyaaron.com> > wrote: > > > I'm still wondering why desk phones don't have a small built-in GPS > > chip yet? Soft phones on cell phones could have access to GPS. Web > > browsers wouldn't work so well. > > But having the phone out-of-band-signal the phone server with GPS > > info (maybe a SIP header or something) would allow the phone server > > to use that information for routing 911 calls. > > It could even pass the info through directly to more 'advanced' 911 > > centers. > > > > One possibility would be to go old-style and transmit the data > > in-band over the voice circuit similar to modems or DSL. We're only > > talking a few bytes for GPS coordinates, elevation, and accuracy > > information. Burst the data at the beginning of the call, or every 30 > > seconds, etc... > > > > My motorola HT-1250 from two decades ago would transmit something > > like an 8-character radio identifier when you keyed up. It only > > delayed the conversation by a third of a second. > > > > Maybe the phone server could even add in some additional information (i.e. > > "123 West Main St / 3rd Floor / Room 42"). > > > > -A > > > > On Thu, May 14, 2020 at 12:53 PM Carlos Alvarez > > <caalva...@gmail.com> > > wrote: > > > >> I *thought* I had read something about mobile apps being given a > >> pass on 911, but not completely sure. And then where do we cross > >> the line? Mobile app, tablet running a WebRTC softphone...etc... > >> > >> > >> On Thu, May 14, 2020 at 12:41 PM Mike Hammett <voice...@ics-il.net> > >> wrote: > >> > >>> We're looking that we may have to allocate a lot more DIDs, simply > >>> for the new 911 requirements. We have a lot of clients with work > >>> from home people. Some have their own DIDs already, some don't. > >>> > >>> Softphones make this a lot more complicated. We could have the > >>> same extension connected via desk phone, windows app, Chrome > >>> extension, phone app, and tablet app. The desk phone is pretty > >>> easy. The mobile app? Yeah, that's inherently much more difficult to > >>> manage. > >>> > >>> > >>> I don't know. > >>> > >>> > >>> > >>> ----- > >>> Mike Hammett > >>> Intelligent Computing Solutions > >>> http://www.ics-il.com > >>> > >>> > >>> > >>> Midwest Internet Exchange > >>> http://www.midwest-ix.com > >>> > >>> > >>> > >>> ------------------------------ > >>> *From: *"Mike Hammett" <voice...@ics-il.net> > >>> *To: *"Voiceops.org" <voiceops@voiceops.org> > >>> *Sent: *Thursday, May 14, 2020 2:04:43 PM > >>> *Subject: *[VoiceOps] Fwd: 911 and Softphones > >>> > >>> The pitfalls of having my email address mirror the mailing lists > >>> I'm on, I get list submissions. :-) > >>> > >>> > >>> > >>> ----- > >>> Mike Hammett > >>> Intelligent Computing Solutions > >>> http://www.ics-il.com > >>> > >>> > >>> > >>> Midwest Internet Exchange > >>> http://www.midwest-ix.com > >>> > >>> > >>> > >>> ------------------------------ > >>> *From: *"Christopher Aloi" <cta...@gmail.com> > >>> *To: *voice...@ics-il.net > >>> *Sent: *Thursday, May 14, 2020 9:39:41 AM > >>> *Subject: *911 and Softphones > >>> > >>> Hey All, > >>> > >>> With the recent migration to everyone working from home we are > >>> seeing a huge increase in soft phone usage. How is everyone > >>> handling location updates for 911 with soft phones? Our switch > >>> has the concept of sites and users fall within a site but can also > >>> travel across sites. An out pulsed number is bound to the site > >>> when 911 is dialed from within the site. We are looking at > >>> building individual sites for each user so they can have a > >>> dedicated unique outbound number only for 911. Does your company > >>> consider a soft phone the same as a "hard" phone with regards to > >>> 911? From the reading I have done I see no delineation between > >>> the two. Thanks, Chris > >>> > >>> > >>> > >>> > >>> _______________________________________________ > >>> VoiceOps mailing list > >>> VoiceOps@voiceops.org > >>> https://puck.nether.net/mailman/listinfo/voiceops > >>> > >>> _______________________________________________ > >>> VoiceOps mailing list > >>> VoiceOps@voiceops.org > >>> https://puck.nether.net/mailman/listinfo/voiceops > >>> > >> _______________________________________________ > >> VoiceOps mailing list > >> VoiceOps@voiceops.org > >> https://puck.nether.net/mailman/listinfo/voiceops > >> > > > _______________________________________________ > VoiceOps mailing list > VoiceOps@voiceops.org > https://puck.nether.net/mailman/listinfo/voiceops -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ VoiceOps mailing list VoiceOps@voiceops.org https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list VoiceOps@voiceops.org https://puck.nether.net/mailman/listinfo/voiceops