RE: [Asterisk-Users] 911 emergency service and VoIP
Joe, This is highly implementation specific. Perhaps I can give you some pointers to help you out. BTW, if you just happen to be in Texas, I can provide you with a list. Regular 911 calls are answered by a PSAP. Voip calls also goto a PSAP, but are handled differently. In fact, in most regions there aren't clear ways of handling these calls as of yet. Here are some pointers. 1. Do NOT call the PSAP. They are very busy, and in general are the WRONG organization to contact. Instead you want the 911 Agency for the area you are to serve. This is either a Council Of Governments or an Emergency Communications District depending on when it was formed. For example, here in Houston, the 911 Agency just happens to be the Harris County ECD. The Houston 911 Agency's website is (coincidential) http://www.911.org You must MUST start with them before you do ANYTHING 911. Certifications are required. http://www.nena.org is a good starting point.. Use search 2. If you are going to do 911, you must send LOCATION (ie: address) information to the 911 database. I do this through Intrado http://www.intrado.com through a product called data exchange 3. Depending on your connectivity, understand that the 911 agency and PSAP don't care what technology you use to connect to your customer. So if you can provide ANI, you are pretty much good to go. 4. For what it's worth; my traditional VoIP service offering will deliver 911 calls in the indentical manner as my non VoIP calls. If you'd like to talk specifics I can help you but I'd have to request that we take it off list since I feel that it is outside of the scope of the list. You can reach me at [EMAIL PROTECTED] -Brett -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Baptista Sent: Wednesday, June 16, 2004 8:35 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] 911 emergency service and VoIP I understand that most VoIP providers allow for 911 calling but that 911 service is not the same as that available to PSTN. From what I understand a 911 Call Will Go To A General Access Line at the Public Safety Answering Point (PSAP). This is different from the 911 Emergency Response Center where traditional 911 calls go. Does anyone know how I can get information on howto contact the people at the Public Safety Answering Points (PSAPs)? Is there alist somewhere I can reference. thanks joe baptista ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
Joe Baptista wrote: I understand that most VoIP providers allow for 911 calling but that 911 service is not the same as that available to PSTN. From what I understand a 911 Call Will Go To A General Access Line at the Public Safety Answering Point (PSAP). This is different from the 911 Emergency Response Center where traditional 911 calls go. Does anyone know how I can get information on howto contact the people at the Public Safety Answering Points (PSAPs)? Is there alist somewhere I can reference. thanks joe baptista Joe, You are slightly confused. Let me explain how it works. When you place a 911 call, it is sent to the 911 selective router at the [I/C]LEC. The 911 selective router does an ALI (Automatic Location Identification) dip against the ANI (Automatic Number Identification) that is present on the call. The ANI is going to be the CallerID number that you/your provider present. When the ALI information is returned to the 911 selective router, it makes the decision which PSAP to send your call to based on the location in the ALI. The call is then routed to the PSAP. The PSAP gets the call and the ANI. They in turn do an ALI dig against the ANI to get the location information on their screens. If no ALI is present in the database for the ANI you're using, the call is default routed to the county PSAP because no positive route can be established without ALI information. When you call 911 without ALI information present, it is 911 service. When you make a call from an ANI that has accurate ALI information, you are using E911 or Enhanced 911 service. If you have PRI service into your * server, it is possible - though not always easy - to set the ALI database information specific for each ANI (DID number) that you use. I do this with our PRI's. Depending on which number we present to the telco, the ALI is different. Now, what you describe might very well be how Vonage and other providers are providing 911 access but, it is most definately NOT even basic 911 as it doesn't go to the PSAP, even the default-route PSAP. It is simply them mapping 911 calls to go to NPA-NXX-NXXX instead. John ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
On Thursday 17 June 2004 11:38, John Fraizer wrote: If you have PRI service into your * server, it is possible - though not always easy - to set the ALI database information specific for each ANI (DID number) that you use. I do this with our PRI's. Depending on which number we present to the telco, the ALI is different. Do you have information on how to do this? This is *precisely* what I want to do. I assumed you set this up with your telco and then set the caller ID to the # matching the address you wanted, leaving the telco to do the address match. Regards, Andrew ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
Andrew Kohlsmith wrote: On Thursday 17 June 2004 11:38, John Fraizer wrote: If you have PRI service into your * server, it is possible - though not always easy - to set the ALI database information specific for each ANI (DID number) that you use. I do this with our PRI's. Depending on which number we present to the telco, the ALI is different. Do you have information on how to do this? This is *precisely* what I want to do. I assumed you set this up with your telco and then set the caller ID to the # matching the address you wanted, leaving the telco to do the address match. Regards, Andrew The service that you need from your telco is called PS/ALI or Private Switch/Automatic Location Identification. Most phone companies are *capable* of doing this. The sales critters generally don't know what the ^#@@ you're talking about though so, ask them to get their 911 coordinator involved. The 911 coordinator will know EXACTLY what you're talking about. And yes, the location information (ALI) is held in a database outside of your system. You simply send the appropriate ANI information and the ALI is mapped to it. If you put a phone in at 123 E. Main Street with a DID of 123-456-7890, you update the ALI information for 123-456-7890 to match. John ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
Andrew Kohlsmith wrote: Do you have information on how to do this? This is *precisely* what I want to do. I assumed you set this up with your telco and then set the caller ID to the # matching the address you wanted, leaving the telco to do the address match. In discussions with my telco, they are very unwilling to do this, because they don't want to be responsible for making these database changes (too much liability involved). Just imagine what would happen if you move a phone, mandating an ALI update for the associated DID number, send that update request to the telco, and it takes them 24 hours to make the change, during which time that phone is used to call 911 and help is dispatched to the wrong location :-( If the situation was life-threatening, someone could die. They don't want to be even remotely responsible for that. In the normal case, they set up the ALI information _once_ when you order your service, and make changes only when you physically move services. PS/ALI pushes the ALI update burden onto you, which is where it belongs. You can then deal with the liability issues with your customers, and the telco is out of the loop (no pun intended). ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
Kevin P. Fleming wrote: Andrew Kohlsmith wrote: Do you have information on how to do this? This is *precisely* what I want to do. I assumed you set this up with your telco and then set the caller ID to the # matching the address you wanted, leaving the telco to do the address match. In discussions with my telco, they are very unwilling to do this, because they don't want to be responsible for making these database changes (too much liability involved). Just imagine what would happen if you move a phone, mandating an ALI update for the associated DID number, send that update request to the telco, and it takes them 24 hours to make the change, during which time that phone is used to call 911 and help is dispatched to the wrong location :-( If the situation was life-threatening, someone could die. They don't want to be even remotely responsible for that. In the normal case, they set up the ALI information _once_ when you order your service, and make changes only when you physically move services. PS/ALI pushes the ALI update burden onto you, which is where it belongs. You can then deal with the liability issues with your customers, and the telco is out of the loop (no pun intended). Your telco really can't *prevent* you from doing PS/ALI. They don't have to make it easy though. Even with PS/ALI, the same database is updated. It's just you doing the update vs the telco doing it. Doing things the Right Way TM isn't always easy but, in the end, it is going to be the best. Getting set up to do PS/ALI isn't free either but, when you can tell your customers that they will have E911 service vs simple 911 - non-emergency number mapping, it gives you a sales advantage. If your telco doesn't want to (1) Update the ALI records as you request or (2) Provide you with a PS/ALI mechanism, I suggest that you get your public utilities commission involved in the loop. John ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
John Fraizer wrote: Your telco really can't *prevent* you from doing PS/ALI. They don't have to make it easy though. Even with PS/ALI, the same database is updated. It's just you doing the update vs the telco doing it. Doing things the Right Way TM isn't always easy but, in the end, it is going to be the best. Getting set up to do PS/ALI isn't free either but, when you can tell your customers that they will have E911 service vs simple 911 - non-emergency number mapping, it gives you a sales advantage. If your telco doesn't want to (1) Update the ALI records as you request or (2) Provide you with a PS/ALI mechanism, I suggest that you get your public utilities commission involved in the loop. I must have misspoke, or you misunderstood... my telco is happy to help me get set up for PS/ALI. In fact, that's the only method they've offered for me to be able to do E911 from my VOIP termination service (which is not yet installed G). What they will _not_ do is manage the ALI information for my PRI line(s) and DID numbers, except at installation and service-move time only. I personally don't blame them one bit for this position; if they can help me get set up for PS/ALI, that's the best solution for all concerned. ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] 911 emergency service and VoIP
I understand that most VoIP providers allow for 911 calling but that 911 service is not the same as that available to PSTN. From what I understand a 911 Call Will Go To A General Access Line at the Public Safety Answering Point (PSAP). This is different from the 911 Emergency Response Center where traditional 911 calls go. Does anyone know how I can get information on howto contact the people at the Public Safety Answering Points (PSAPs)? Is there alist somewhere I can reference. thanks joe baptista ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] 911 emergency service and VoIP
On Wed, 16 Jun 2004, Joe Baptista wrote: Does anyone know how I can get information on howto contact the people at the Public Safety Answering Points (PSAPs)? Is there alist somewhere I can reference. well, you could dial 911.. ;) But more seriously, I think I'd start by calling the non-emergency number for the local police/sheriff/fire dept and asking the dispatcher. Or maybe look up the Public Safety Commission (?) in the phonebook.. I'll be needing to give some attention to this issue soon, so I'll be interested to hear how the interaction with them goes. Greg ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
