Tag Archives: voip emergency calls

Difference Between ANI and ALI Databases

V1 VoIP explains the difference between the automatic number identification ANI and the automatic location identification ALI databases and their uses in voip emergency phone calls

V1 VoIP is committed to offering our VoIP providers, resellers and wholesale agents answers to their questions about emergency phone call information. One question asked often is this:

What is the difference between the ALI and ANI databases and how can they effect emergency response?

The Automatic Number Identification (ANI) is the automatic display at the PSAP of the telephone number associated with the line which called 911. Each telephone number and the physical location to which it corresponds are stored in an Automatic Location Identification (ALI) database, managed by the local exchange carrier.

Imagine you are in a ‘Law and Order’ episode. The 911 operator is looking at the screen, sees the adddress of the caller and says “help is on the way.” In that 911 call, the PSAP uses the ANI to retrieve the caller’s physical address from the ALI database. Additionally, the ANI acts as a callback number should the PSAP lose its connection to the distressed caller. Both ANI and ALI are key capabilities of E911 service.

With traditional E911 service, ALI records are stored in regional ALI databases, and are usually administered by the local exchange carrier (LEC). When a phone’s location changes, the regional ALI database must be revised with new location information which can take up to 48 hours to update.

Due to the capabilities of IP phones, it can be difficult to ensure that the regional ALI is up-to-date. Whereas traditional telephone numbers are static, IP phones can be moved easily, forcing the user to notify a network administrator, who in turn must contact the LEC to update the phone’s location in the regional ALI database. Unfortunately, this process takes time to implement, and may be forgotten entirely by the user.

Additionally, IP phones can relocate to regions served by different ALI databases entirely. A VoIP service provider or enterprise would then need agreements with each LEC to update different regional ALI databases as phones move around the country.

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V1 VoIP Provides Lowest e911 Rates for Canada

V1 VoIP e911 coverage in Canada

In April 2005, the CRTC (Canadian Radio and Telecommunications Commission; the Canadian equivalent of the U.S. Federal Communications Commission) made a ruling that all VoIP providers must provide 911 service. V1 VoIP has risen up to meet the needs of its Canadian customers.

The “basic 911” service that many VoIP customers have puts them in touch with a call center that takes down their address and contacts the closest emergency response center. That’s because subscribers are identified by an IP number rather than geographic location. If calls are disconnected, the VoIP provider gives the customer’s last known address on file.

Traditional phone providers’ enhanced 911 service sends location information on customers directly to emergency services.

V1 VoIP’s e911 solution provides nationwide E911 coverage in both the US and Canada. Voice service providers simply need to establish a SIP trunk to V1’s emergency services network. Customers can update and validate their locations in real-time using V1’s provisioning interface, which can be incorporated directly into the VSP’s website.

When 911 is dialed, V1’s Emergency Routing Service delivers the call to the appropriate PSAP based on the caller’s registered location, ensuring that the correct location data and callback number appear on the dispatcher’s screen.

Contact V1 VoIP now< to learn more about our incredible low rates for e911 for all of Canada.

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V1 VoIP e911 Service to United States and Canada

V1 VoIP covers Canada with e911 service

V1 VoIP uses and offers e911 services are 100% compliant with FCC and CRTC and cover the entirety of the United States of America and Canada.

If you live in an area where E911 service is available, your telephone number and the address you have registered or will register during the sign-up process will be automatically forwarded to the most appropriate emergency dispatch center. Consequently, the emergency operators will have immediate access to the information they need send help directly to your location. Please keep in mind that, the address you register with is the address that will be automatically forwarded to emergency services when you dial 911 – therefore, if you relocate either temporarily or permanently, you must update your address by clicking on the member login to any such move so that emergency services always has the correct information regarding your whereabouts.

Here are a few definitions regarding VoIP and e911 that V1 VoIP advises resellers and their customers to be aware of:

911 Services – functionality that allows End-users to contact emergency services, including, without limitation, police, fire and hospital medical services. In areas served by selective routers, 911 Services may include Enhanced 911 (“E-911”) Service, in which emergency calls to the appropriate public safety answering point (“PSAP”) serving the End-User address and DID/DOD information.

DID/DOD – stand for Direct Inward Dial and Direct Outward Dial number. In laments terms, this is your phone number. A DID means an access line associated with a particular telephone number that allows for inbound and outbound voice calls

Emergency Call Relay Center (ECRC) – means Provider or its agents inbound call center, staffed 24 hours per day, 7 days per week, and 365 days per year for emergency call handling support.

Emergency Call – a 911 call placed by a Voice over Internet Protocol (“VoIP”) End-User to Carrier’s Internet Protocol (“IP”) services.

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V1 VoIP Explains the ANI and ALI Databases

V1 VoIP explains the difference between the automatic number identification ANI and the automatic location identification ALI databases and their uses in voip emergency phone callsWhen providing phone service to either businesses or residences, customers need to know important information regarding their ability to make emergency telephone calls. V1 VoIP is committed to offering our VoIP providers, resellers and wholesale agents answers to their questions about emergency information. One question asked often is this:

What is the difference between the ALI and ANI databases and how can they effect emergency response?

The Automatic Number Identification (ANI) is the automatic display at the PSAP of the telephone number associated with the line which called 911. Each telephone number and the physical location to which it corresponds are stored in an Automatic Location Identification (ALI) database, managed by the local exchange carrier.

Imagine you are in a ‘Law and Order’ episode. The 911 operator is looking at the screen, sees the adddress of the caller and says “help is on the way.” In that 911 call, the PSAP uses the ANI to retrieve the caller’s physical address from the ALI database. Additionally, the ANI acts as a callback number should the PSAP lose its connection to the distressed caller. Both ANI and ALI are key capabilities of E911 service.

With traditional E911 service, ALI records are stored in regional ALI databases, and are usually administered by the local exchange carrier (LEC). When a phone’s location changes, the regional ALI database must be revised with new location information which can take up to 48 hours to update.

Due to the capabilities of IP phones, it can be difficult to ensure that the regional ALI is up-to-date. Whereas traditional telephone numbers are static, IP phones can be moved easily, forcing the user to notify a network administrator, who in turn must contact the LEC to update the phone’s location in the regional ALI database. Unfortunately, this process takes time to implement, and may be forgotten entirely by the user.

Additionally, IP phones can relocate to regions served by different ALI databases entirely. A VoIP service provider or enterprise would then need agreements with each LEC to update different regional ALI databases as phones move around the country.

Ultimately, it is difficult for regional ALI databases to stay current with nomadic VoIP users, and there is no guarantee that the VoIP caller’s accurate location information will be available in a crisis.

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