Internet protocol (IP) emergency connections (ITEC) telephony
Internode routing for a telephone system
Line-based public safety answering point
Location determination capabilities for emergency call services
Location evaluation for callers that place emergency...
Location evaluation for callers that place emergency...
Location ID service for telephone calls
Location ID service for telephone calls
Managing emergency services on a per-telephone-number basis
Method and apparatus for establishing a connection between...
Method and apparatus for handling an in-call request for...
Method and apparatus for increasing the reliability of an...
Method and apparatus for providing emergency response...
Method and apparatus for providing in country phone numbers...
Method and apparatus for routing emergency services calls in...
Method and apparatus for servicing emergency calls from a...
Method and apparatus for supporting out of area phone number...
Method and apparatus for using a single local phone number...
Method and apparatus for using a single local phone number...
Method and system for availing participants in a special...