[asterisk-biz] Simulating 911 ANI/ALI

[Si Tai Fan]

Actually I am biding for the project and I am in between the provider 
and the customer. The customer wants me to do a demonstration first as a 
*proof of concept* but the data will be subject to the final 
confirmation by the provider. Until then I won't be able to talk to the 
provider directly as it is masked by the customer. Any suggestions?

asterisk_help at iwishi.nu wrote:
>> ... I plan to use Asterisk as the front end to 
>> connect to a provider who will connect via SIP trunk and pass all 911 calling 
>> informations like...
>> 1. ANI (Automatic Numbering Information)
>> 2. ALI (Automatic Location Information)
>> a. Caller no
>> b. Building name / caller name
>> c. Address
>> d. Latitude and Longitude of the caller address
>>
>> 3. Incident Information
>> a. Incident code
>> b. Incident Description.
>> c. might have other information as well.
>>
>> Then I wish to pass these through the manager interface where it can be 
>> collected and processed into a database server to display it on a console... 
>> perhaps like a crm pop-up.
>>     
>
>
> You will need to contact the provider that will send these details via SIP 
> and ask of the standard they will be following.  I'm not aware of any 
> single standard that will address the information you are expecting.
>
> You might want to review: 
> http://www.voip-info.org/wiki/view/Asterisk+-+documentation+of+application+commands#SIPcommands
>
> http://www.voip-info.org/wiki/index.php?page=Asterisk+func+sip_header
> Synopsis - Gets the specified SIP header
>
> http://www.voip-info.org/wiki/view/Asterisk+cmd+SIPGetHeader
> With this app, you can pick any header from an incoming invite and
> stuff it into a channel variable. It is a generic way of supporting any 
> header a vendor or service provider may add that you want to use in your 
> dialplan.
>
> In the US, the PSAP (Public Safety Answering Provider/Point) is given the 
> ANI (an identification number, normally a billing phone number) with the 
> telephone call and they must then use a seperate communications circuit
> connecting them to a database provider to query for the information needed 
> to dispatch the call.
>
> Please let me know what standard or spec they are using in their SIP 
> calls. As a CLEC and VoIP service provider myself, I'm always interested 
> in learning of new developments in this area.
>
>
>   -Eric Osterberg
>     Sound Choice Communications LLC
>      Minnesota, US
>
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