Title:
TRANSMITTING OVER A PRIVATE NETWORK ACCURATE EMERGENCY LOCATION IDENTIFICATION NUMBERS (ELINS) FROM BEHIND A MULTI-LINE TELEPHONE SYSTEM (MLTS) UTILIZING PORT EQUIPMENT NUMBERS
Document Type and Number:
WIPO Patent Application WO2002078306
Kind Code:
A3
Abstract:
Methods for accurate transmission of ELIN/callback number from an emergency caller calling from behind a PBX/MLTS include assigning a port equipment number to each device/trunk of the PBX/MLTS and associating ports/devices with ELINs and callback numbers. The apparatus of the invention detects an emergency number, assigns the call priority, and uses the port/device number to determine the ELIN/callback number and properly transmit the ELIN/callback number over a private network for far-end hop-off to the public network PSAP
Inventors:
STUMER PEGGY M
Application Number:
PCT/US2002/005025
Publication Date:
February 19, 2004
Filing Date:
February 20, 2002
Export Citation:
Assignee:
SIEMENS INF & COMM NETWORKS (US)
International Classes:
H04M3/42; (IPC1-7): H04M3/42
Foreign References:
| GB2349774A | 2000-11-08 | |||
| US5771283A | 1998-06-23 | |||
| US5347568A | 1994-09-13 |
Other References:
"NENA Technical Information Document on Model Leglislation, Enhanced 9-1-1 for Multi-line Telephone Systems", NATIONAL EMERGENCY NUMBER ASSOCIATION (NENA), November 2000 (2000-11-01), XP002227690, Retrieved from the Internet [retrieved on 20030117]
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