I defined in my extensions.conf file this...
exten => _X11,1,Dial(Zap/g1/${EXTEN})
then tested it by dialing 411 (information) and 311(nyc info). I think that if
these two work for you then its safe to assume 911 works as well without
having to test it.
On Wednesday 19 January 2005 04:45 pm, Manjit Riat
wrote:> I believe the 911 is a serious issue if one does an asterisk installation
> in an office. How do you test 911? Won't they arrest you or something
for
> dialing 911 for no reason and talking to one of their agents who could have
> taken a more important call?
>
> On the other hand what an emergency comes up (like someone got seriously
> injured) and on top of that asterisk crashed all of a sudden bringing the
> whole office PBX down. Since it would be not be possible to place a call
> and emergency matter becomes more serious, who would be held responsible?
> The person who installed the PBX for not implementing a redundant and
> reliable system?
I believe the 911 is a serious issue if one does an asterisk installation in an office. How do you test 911? Won't they arrest you or something for dialing 911 for no reason and talking to one of their agents who could have taken a more important call? On the other hand what an emergency comes up (like someone got seriously injured) and on top of that asterisk crashed all of a sudden bringing the whole office PBX down. Since it would be not be possible to place a call and emergency matter becomes more serious, who would be held responsible? The person who installed the PBX for not implementing a redundant and reliable system? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050119/deec2261/attachment.htm
What do you want to test? Call routing under certain failure scenarios or CAMA trunking? We tested 911 to a "PRI" not connected to the PSTN that terminates on another gateway (back to back PRI) and make a dedicated handset ring using a dedicated pass through dial-peer. That way you can do the Q931 debugging on the far end gateway to make sure you have all the right ISDN signaling in place (assuming you are using ISDN, which makes sense if you are an office PBX) CAMA trunking will require.. CAMA trunks. As for 911 design. there are a number of ways of doing this depending on the hazard/failure you are trying to protect yourself from. You could go as far as dedicated 911 IADs using, for instance, Cisco's SRST and if you are using IP Phones, set up the SRST gateway as the secondary call manager etc etc etc. -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Manjit Riat Sent: Wednesday, January 19, 2005 2:46 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: [Asterisk-Users] E911 Testing ! I believe the 911 is a serious issue if one does an asterisk installation in an office. How do you test 911? Won't they arrest you or something for dialing 911 for no reason and talking to one of their agents who could have taken a more important call? On the other hand what an emergency comes up (like someone got seriously injured) and on top of that asterisk crashed all of a sudden bringing the whole office PBX down. Since it would be not be possible to place a call and emergency matter becomes more serious, who would be held responsible? The person who installed the PBX for not implementing a redundant and reliable system? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050119/6cfe6b6b/attachment.htm
The PBX craging can happen on any system. Most key system don't have UPSs or battery backups. The larger ones do but the smalll 4 x 8 systems usually don't. The best practice would be to install a POTS line and adjust your dialplan to route 911 calls out the line. I would also add several line powered phones in paralell to that line. Call them powerfail phones and that's it. You can get fancy and have the main number route to that number upon power failure. -----Original Message----- From: asterisk-users-bounces@lists.digium.com <asterisk-users-bounces@lists.digium.com> To: 'Asterisk Users Mailing List - Non-Commercial Discussion' <asterisk-users@lists.digium.com> Sent: Wed Jan 19 16:45:59 2005 Subject: [Asterisk-Users] E911 Testing ! I believe the 911 is a serious issue if one does an asterisk installation in an office. How do you test 911? Won't they arrest you or something for dialing 911 for no reason and talking to one of their agents who could have taken a more important call? On the other hand what an emergency comes up (like someone got seriously injured) and on top of that asterisk crashed all of a sudden bringing the whole office PBX down. Since it would be not be possible to place a call and emergency matter becomes more serious, who would be held responsible? The person who installed the PBX for not implementing a redundant and reliable system? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050119/f9124788/attachment.htm
I have a home-office system running. I tested 911 by simply plugging my FXO port into an FXS port which was configured to play an announcement on 911. Then picked up a different phone, dialed 911, FXO dials 911 on FXS, I hear the announcement, and I'm done. -----Original Message----- From: Manjit Riat [mailto:manjit@riat.net] Sent: Wednesday, January 19, 2005 3:46 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: [Asterisk-Users] E911 Testing ! I believe the 911 is a serious issue if one does an asterisk installation in an office. How do you test 911? Won't they arrest you or something for dialing 911 for no reason and talking to one of their agents who could have taken a more important call? On the other hand what an emergency comes up (like someone got seriously injured) and on top of that asterisk crashed all of a sudden bringing the whole office PBX down. Since it would be not be possible to place a call and emergency matter becomes more serious, who would be held responsible? The person who installed the PBX for not implementing a redundant and reliable system?
911 Testing is a very complicated issue. For a clec it typically
involves scheduling with them so they will expect your call. Also we
frequently use false addresses (that are MSAG resolvable) and some very
sophisticated PSAPs even have fake addresses that MSAG resolve to a
"testing" ESN. Translated in english:
1. I put in a "special address" mapped to a phone number into the 911
location database. This is in the ALI database. The primary source of
data that the 911 centers map phone number to address.
2. MSAG (The master street address guide) maps actual street addresses
to "ESNs" an ESN is an "Emergency Service Number" (or
something like
that, feel free to correct me). It is basically a specific collection of
Police, Fire and EMS. For example, Your house might use Police "A",
Fire
"B" and EMS "B", but the people on the other side of the
street might
use Police "C", Fire "B", EMS "B" (maybe it's
jurisdictionally a
"different town"). The PSAPs make up a fake address like 1234 Network
Testing Blvd and they make it resolve to ESN 555 which will route to a
testing center ("joe") who only recieves test calls.
Ok.. so too much information.. right?
here's the short answer. Please don't call 911 unless you have an
emergency. Find out who your local PSAP is and call the administative
number for it and talk to them. Sometimes it is hard to find this
number, but it's out there. Look for Emergency services in "ACME
town"
or "ACME Town 911 Dispatch" etc,etc. Some very small towns actually
have
their administrative lines forward to the 911 centers for those areas.
Also be aware that if you are a carrier, you are required by law to have
a signed contract with the 911 agency. This is typically so they can
collect on the federally mandated 911 end user line fees.
-Brett
Manjit Riat wrote:
> I believe the 911 is a serious issue if one does an asterisk
> installation in an office. How do you test 911? Won?t they arrest you
> or something for dialing 911 for no reason and talking to one of their
> agents who could have taken a more important call?
>
> On the other hand what an emergency comes up (like someone got
> seriously injured) and on top of that asterisk crashed all of a sudden
> bringing the whole office PBX down. Since it would be not be possible
> to place a call and emergency matter becomes more serious, who would
> be held responsible? The person who installed the PBX for not
> implementing a redundant and reliable system?
>
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-----Original Message----- I believe the 911 is a serious issue if one does an asterisk installation in an office. How do you test 911? Won't they arrest you or something for dialing 911 for no reason and talking to one of their agents who could have taken a more important call? -speaking from 10+ years of installations, dial 911 and tell the operator your name, who you are with, and that you are testing a new phone system. Confirm with them that the telephone number and address they have in their system is correct, say thank you and hang-up. On occasion, you get a surly operator who has had a bad day but crap, if you had their job, your days may not be so good either. On the other hand what an emergency comes up (like someone got seriously injured) and on top of that asterisk crashed all of a sudden bringing the whole office PBX down. Since it would be not be possible to place a call and emergency matter becomes more serious, who would be held responsible? The person who installed the PBX for not implementing a redundant and reliable system? -document that on 'X' date and 'Y' time, you tested and confirmed that 911 access was functioning and have the client sign off on the installation. After that, the system is theirs. Always test emergency services access for premises equipment based solutions unless you have signed documentation from the client that they do not want 911 access out of their system! Jason Kawakami www.optellabs.com Salt Lake City, UT
> I believe the 911 is a serious issue if one does an asterisk installation in > an office. How do you test 911? Won't they arrest you or something for > dialing 911 for no reason and talking to one of their agents who could have > taken a more important call?That depends. Call and ask them - if you don't know where to call, check with your local police department on their non-emergency number. If you're in one of the cities where it takes them fifteen minutes to answer 911, I suspect they won't want the additional volume. I haven't needed to do it in a while, but around here, you used to be able to call 911 and say something along the lines of "This is a test. This is not an emergency call. Could you please verify that your system has identified this as NNN-NNNN at $address" and they'd very cheerfully verify it for you.> On the other hand what an emergency comes up (like someone got seriously > injured) and on top of that asterisk crashed all of a sudden bringing the > whole office PBX down. Since it would be not be possible to place a call and > emergency matter becomes more serious, who would be held responsible? The > person who installed the PBX for not implementing a redundant and reliable > system?I can sue you for being ugly, and I've never even seen you. If you've taken reasonable care, it's probably fine. Check with a lawyer if you're paranoid. ... JG -- Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net "We call it the 'one bite at the apple' rule. Give me one chance [and] then I won't contact you again." - Direct Marketing Ass'n position on e-mail spam(CNN) With 24 million small businesses in the US alone, that's way too many apples.