TR41.4-05-11-006-TSB-146-A-DraftNenai2AndRecommendations.ppt
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Transcript TR41.4-05-11-006-TSB-146-A-DraftNenai2AndRecommendations.ppt
Telecommunications Industry Association
TR41.4-05-11-006
Document Cover Sheet
Project Number
PN-3-4726-RV2 (To be published as future TIA TSB-146-A bulletin)
Document Title
DRAFT - NENA i2 market solutions & consequent recommendations on IP PBX
system design
Source
Alcatel
1 Route du docteur Albert Schweitzer - 67408 Illkirch - France
Contact
Name: Patrick Daniel /
Phone:
Fax:
Email:
Arnaud Vergnol
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Intended Purpose
of Document
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For Incorporation Into TIA Publication
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The document to which this cover statement is attached is submitted to a Formulating Group or
sub-element thereof of the Telecommunications Industry Association (TIA) in accordance with the
provisions of Sections 6.4.1–6.4.6 inclusive of the TIA Engineering Manual dated March 2005, all of
which provisions are hereby incorporated by reference.
Abstract
TR41.4-05-11-XXX
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NENA i2 market solutions
&
consequent recommendations
on IP PBX system design
Edition 2 / Patrick DANIEL – A L C A T E L / 6-Oct-05
NENA i2 / 6-Oct-05
All rights reserved © 2005, Alcatel
Introduction
Page 3
“It seems that the Federal Communications
Commission (FCC)’s ultimatum to VoIP providers
issued this May about having E911 access ready
for Q3 05 has served its purpose. More VoIP
technology providers have lined up to announce
their VoIP E911 access readiness”
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‘NENA i2’ VoIP E911step
Overview with new elements
Page 4
NEW !
NEW !
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New elements in ‘NENA i2’
Page 5
Emergency Services Gateway (ESGW)
ESGW provides interconnection point between the VoIP domain and existing
Emergency Services Provider Network
The ESGW provides protocol interworking between Session Initiated Protocol
(SIP) and call setup signaling to the E9-1-1 tandem (Multi-Frequency [MF] or
Signaling System #7 [SS7])
VoIP Positioning Center (VPC)
Receives and stores information about an emergency call, including callback
number information and location information
May query LIS with LocationKey (LK) to obtain Location Object (LO)
Based on LO, VPC determines Emergency Services Routing Number
(ESRN), and allocates an Emergency Services Query Key (ESQK)
associated with the VPC, the call instance and the Emergency Service Zone
(ESZ) from which the call originated. Also Contingency Routing Number
(CRN) for alternate routing
Responds to subsequent queries for location information for that call instance
from the PSAP via its serving ALI database, using the allocated ESQK
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Basic VoIP emergency call routing in ‘NENA i2’
Page 6
IP Branch Office 1
IP Headquarters
Local
ILE
Dynamic location updates possible
Frontal
Local
ILE
IP Branch Office 2
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VoIP Service Provider
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Basic VoIP emergency call routing in ‘NENA i2’
Page 7
Emergency Service Query Key (ESQK)
Emergency Service Query Key (ESQK) – The ESQK identifies a call
instance at a VPC, and is associated with a particular SR and PSAP
combination. The ESQK is delivered to the E9-1-1 SR and as the
calling number/ANI for the call to the PSAP. The ESQK is used by the
SR as the key to the Selective Routing data associated with the call.
The ESQK is delivered by the SR to the PSAP as the calling
number/ANI for the call, and is subsequently used by the PSAP to
request ALI information for the call. The ALI database includes the
ESQK in location requests sent to the VPC. The ESQK is used by the
VPC as a key to look up the location object and other call information
associated with an emergency call instance. The ESQK is expected to
be a ten-digit North American Numbering Plan Number.
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The different organizational entities
and resulting complexity
Page 8
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Open question on ‘NENA i2’
Page 9
Regarding the ‘VoIP domain’
Which elements are hosted on the enterprise side
?
Which elements are hosted on the public side ?
TR41.4-05-11-XXX
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Fact 1 BellSouth Telecommunications extract
http://www.bellsouth.com/
Page 10
BellSouth supports dynamic location updates to its ALI data base
from VPC 3rd party through an signed contract
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Fact 2 HBF Group solution
http://www.hbfgroup.com/
Page 11
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Fact 3 Intrado solution 1
http://www.intrado.com/
Page 12
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Fact 4 Intrado solution 2
Page 13
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Fact 5 Level 3 solution
http://www.level3.com/
Page 14
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Fact 6 Level 3 – TeleCommunication Systems (TCS) agreement / Sept
05
http://www.telecomsys.com/
Page 15
Level 3
TR41.4-05-11-XXX
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Recommendations based on
NENA i2 market solutions analysis
VoIP E911 / Patrick DANIEL / 6-Oct-05
NENA i2 / 6-Oct-05
All rights reserved © 2005, Alcatel
Recommendations based on
NENA i2 market solutions analysis
Page 17
ESGW & VPC functions outside IP PBX perimeter
Push ‘Indoor LIS’ integration. Consequently,
openness to next Location-based Services
Push ‘Indoor VPC proxy’ integration combined to
signed contract with VPC operator for ‘dynamic
location updates’ capability
• Denied access issue to enterprise network is then
resolved
• Only SIP exchanges simplifying IP PBX architecture
evolutions
Challenge these recommendations
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Page 18
Thank you
www.alcatel.com
TR41.4-05-11-XXX
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Backup slides on TCS
seen as THE active player
VoIP E911 / Patrick DANIEL / 6-Oct-05
NENA i2 / 6-Oct-05
All rights reserved © 2005, Alcatel
Level 3 & TCS agreement / Sept 05
Page 20
To provide this service to Level 3's customers, TCS
delivers the following key functions:
Location Determination -- validated subscriber location database
featuring a hosted real-time provisioning interface;
Route Determination -- real-time call flow integration where the VoIP
Positioning Center (VPC) receives the 9-1-1 call and determines the
appropriate PSAP to which the call should be routed using
Emergency Routing Database and PSAP routing reference data;
Call Delivery -- routing instructions are returned from the TCS VPC to
the serving softswitch to route across the Level 3 network to the
PSAP via selective routers;
Location Content Delivery -- in response to an Automatic Location
Information (ALI) query from the PSAP, TCS' ALI Link(TM) provides
the caller's location data;
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TCS issued patent Sept 15, 2005
Page 21
http://www.marketwire.com/mw/release_html_b1?rel
ease_id=95300
The patent provides a means for querying a
Message Servicing Center (MSC) from a VoIP
switch and a means for receiving an Emergency
Services Routing Key (ESRK) in response.
Additionally, the patent allows querying by an
Automatic Location Identification (ALI) database for
caller information related to the ESRK
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TCS, Skyhook Wireless and deltathree Bring Live WiFi E9-1-1 Demonstration to VON Conference
Page 22
http://www.skyhookwireless.com/news/press_rel_9.
pdf
TCS, a provider of mission-critical wireless
communications, Skyhook Wireless, a provider of
the industry's first Wi-Fi based metro-area
positioning system, and deltathree, a provider of
proven, high-quality Internet telephony products,
solutions and infrastructure, to deliver VoIP 9-1-1
services announced the companies are
demonstrating Nomadic VoIP E9-1-1 call support at
the VON Conference (Sep 20, 2005)
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Vonage Introduces 9-1-1 TCS ‘VoIP Verify’ for
Broadband Wireless Networks
Page 23
http://www.bbwexchange.com/publications/newswire
s/page546-3020067.asp
Designed for mobility, ‘VoIP Verify’ provides
Vonage subscribers with a simple tool to determine
the availability and extent of the individual’s
emergency services coverage from the caller’s
current registered location
TR41.4-05-11-XXX
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Backup slides
Miscellaneous
VoIP E911 / Patrick DANIEL / 6-Oct-05
NENA i2 / 6-Oct-05
All rights reserved © 2005, Alcatel
Recommendations based on NENA i2 analysis
(ref slide 5)
Page 25
Bluetooth
‘Indoor LIS’
ILE
WLAN
Control
centre
Fixed
Infirmary
SIP
WAN
Outdoor Loc IF
7b
Enterprise
Presence
server
SIP
Calendar
Status
3
4
7a
Notification
Server
SIP
Call Server
Status
Location
Application
Server
2
5
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First-aid
workers
1
‘VPC Proxy’
6
Call PSAP
Name
Phone number
Location
All rights reserved © 2005, Alcatel