GIS/IT


In 1997, the Director of the Calhoun County 9-1-1 District had a vision of creating a GIS department within the agency. In 1998, the vision was fulfilled when one person was assigned to the GIS department and a base map was created. Today the GIS department is the "nucleus" of the center and has three full time personnel: IT Manager, GIS Technician and a Data Control Clerk..

The base map is updated and networked to the Communications Center answering positions as needed, to allow the Telecommunicators the ability to give directions, cross streets and general location information. The map is also used to overlay coordinates from GPS enabled cell phones to determine the location of a wireless caller.

Database

The GIS department performs quality control of incoming addressing data received via phone, modem or printout by verifying the data for accuracy. We have a listing of public and private telephone numbers and addresses for the public safety use. Due to the privacy act, we are unable to share this information with the general public.

 Mapping

The Calhoun County 9-1-1 District sells wall maps and map books to the public for personal use. Maps are printed when ordered and include the latest updates. The map book is no longer being updated and maintained. The latest included update is January 2015. 

For more information about the map books and wall maps, contact the GIS Department at (256) 237-9119.

Wireless (Cell Phones)

The Calhoun County 9-1-1 District has the capability of receiving Phase II information from wireless callers. If your carrier provides this service, the dispatcher is able to see your latitude and longitude and plot your location on our base map. Keep in mind that not all carriers have this service available and they may require you to purchase or upgrade your equipment in order for it to work properly. In any event, it is still very important to provide the Telecommunicator with your exact location.

VOIP (Voice Over Internet Protocol)

What is VOIP?

Voice Over Internet Protocol is the transmission of voice traffic over an IP based network.

How Does it Work?

The consumer must establish a high speed internet connection, have a router and gateway. The router sends the call over an internet connection instead of a standard phone line. The gateway converts the analog signal into a digital format which are broken down into packets and sent through a VOIP gateway where they are reconverted into their original analog format using the Public Telephone Switch Network (PSTN) and routed to the number dialed.

Can I Dial 9-1-1 from a VOIP Device?

Ask your service provider. Not all providers are able to connect to the 9-1-1 system.

Things to know before you switch to VOIP.

1. Some service will not work during power outage. Consider purchasing a back-up power supply.

2. If you travel with your VOIP adapter, you may want to change the address associated with your adaptor. If you dial 9-1-1 from your device, the address that you have associated with the device will display and cause your 9-1-1 call to be misrouted to a PSAP (Public Safety Answering Point) for that address and not necessarily for the location for which you may require emergency services. Contact your service provider if you plan to move your device to update the address/location information.

3. Burglar alarms usually rely on analog modems for service. Check with your service provider to ensure this service is available.

Tips for VOIP Subscribers.

1. Be prepared to give the location and call back number where you need assistance.

2. Tell us what type of assistance is needed (What is your emergency?)

3. Stay on the line to answer any questions that the Telecommunicator is asking.

4. Don't hang up until the Telecommunicator has advised you to do so.



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