Hi Kev,
Check out his link for Cisco Emergency Responder, it offers exactly the functionality you are looking for.
http://www.cisco.com/en/US/products/sw/voicesw/ps842/products_data_sheet09186a008009253a.html
Here is an excerpt from the documentation:
Provides Real-Time Alerts
"During an emergency, a reduction of just a few seconds in response time can have an enormous impact on life, health, and property. Cisco Emergency Responder helps minimize response time by providing real-time alerts to onsite personnel through e-mail, pager, telephone call, and Web page notifications. Onsite response personnel then have knowledge of a caller's location, the owner of the originating phone, and the phone number (ELIN) as received by the PSAP. This information facilitates an immediate response before public fire, police, or medical services reach the scene, and improves the effectiveness of public services when they arrive."
Hope this helps!
Rob
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