Transcript Mobility Enabling Landline Service

VeriSign IP Connect
Connecting communities of interest
Internet Telephony Conference (VP-02 and VP-03 Sessions)
Sean Kent – Product Manager
Email: [email protected]
Tel: (703)346-9907
Agenda
Technical Issues of VoIP Peering
(VP-02) Thursday 01/26/06 12:30-1:15PM
VoIP Peering Business Case Studies
(VP-03) Thursday 01/26/06 1:30-3:15PM
2
VeriSign Know-How
Long history of proving peering services
▪
Recent acquisitions inter-carrier mobile messaging
Inter-carrier short messaging (SMS) experience
▪
Taught mobile operators it pays to cooperate
▪ VeriSign practiced in core components of peering
VoIP peering products (IP Connect) launched Fall’04
▪
Peering across broadband, cellular and enterprise networks
Integration of company assets “One VeriSign” initiative
▪
Dot-com/-net DNS registry platform
▪ SS7 network and databases
▪ Inter-carrier roaming and messaging
Directory
3
Connectivity
Security
Mediation
Lessons Learned
Security
▪
Most security appliances (B/SC) do not scale down to enterprise
▪ Very few support encryption (TLS and SRTP)
Directory
Many carriers’ own intra-community VoIP traffic traverses PSTN!!!
▪ Should leverage existing number management systems
▪ Not as simple as storing telephone number and associated URL
▪
Mediation
▪
End to end IP calls often do not trigger PSTN databases
▪ Poor interoperability across enterprise
Connectivity
▪
Poor quality unacceptable for cheap dial tone
▪ ISP-CLEC peering in co-location centers
4
Intra-Community Centralized Policy Server
Central repository of subscription and topology information
▪
Regulates operating costs (scales operations, enables forced on-net)
Combination of ENUM and IMS specifications
▪
Number block/pool route selection (destination, origination, time, cost)
▪ Subscription discovery, one or more service URIs per user
▪ Callout (service trigger) to PSTN/PLMN databases
Centralized
Routing Directory
PSTN/PLMN
Trunk
Gateway
PSTN Databases
CNAM
LNP
HLR
Call Agent/
Softswitch
Application
Server
 PSTN Breakout Gateway/Border Element Selection
 Intra-Community Service and Location Discovery
 Trigger SIP/ENUM reachable PSTN Databases
5
Inter-Community TN2URL Mapping
Tier 1 (common directory) resolves number ownership
▪
Industry data sources (number pools and portability)
▪ Service provider supplied “Authoritative List” (overrides industry data)
▪ TN to SPid or TN to NS Record (Tier 2 ENUM Server)
LERG and NPAC TN
to SPid industry data
“Authoritative List” manually
entry or bulk upload via portal
Tier 1 ENUM
Server
Service Provider A
Service Provider B
Tier 2 ENUM
Server
Tier 2 ENUM
Server
Service and location discovery (NAPTR record)
2
3
1
5
4
6
Call
Agent
6
Border
Element
IP Peering
Exchanges
Border
Element
Call
Agent
Data Partitioning
Peering managed by way of data types
▪
Classification specifies level of sharing
Data classifications
Private – visible only to enterprise/service provider (intra-domain)
▪ Restricted – visible to “closed user group” of peers (restricted inter-domain)
▪ Federated – visible to all publishing to directory (unrestricted inter-domain)
▪
Peering entities may query one another’s topology
data but may not view one another’s data via portal
DATA PARTITION
Secure Self-Management Portal
- Upload service provider’s dial plan or
enterprise’s corporate directory
- Optionally establish closed user group of
peers or opt all-in peering with all
Peers
7
Enterprise Peering
Introduction of inter-working equipment on customer premises
▪
Security and interoperability across major equipment vendors
Intra-Enterprise
Self-Management Portal
- Publication of corporate directory
- Management of peering enterprises
Enterprise A
(Site 1)
Routing
Directory
Security
- Application level NAT (topology hiding)
- Signaling encryption (TLS)
Interoperability
- Legacy PBXs
- H.323 inter-working w/ SIP
- Vendor variants
Enterprise A
(Site 2)
8
Signaling encryption (TLS)
Authentication (HTTP Digest)
Private dial plan
Telephone # to URL address resolution
Fault tolerant routing and load balancing
Inter-Enterprise
Enterprise B
9
Agenda
Technical Issues of VoIP Peering
(VP-02) Thursday 01/26/06 12:30-1:15PM
VoIP Peering Business Case Studies
(VP-03) Thursday 01/26/06 1:30-3:15PM
10
State of VoIP Peering Market
PSTN replacement slow not explosive growth
▪
Forced on-net weak VoIP community still small
International termination loosing steam
▪
Toll bypass marginalized thru price erosion
Local and fixed-mobile convergence gaining momentum
▪
Cheap dial-tone bundled local and long distance
▪ International demand for country code “1” telephone numbers
▪ Domestic and international roaming bypass (dual mode roam to Wi-Fi)
The players
▪
CLECs altering business model to include wholesale VoIP
▪ ISPs marketing telephony services to subscriber base
▪ Portals with advertisement revenue model add voice to grow user base
11
Positioning
In-network value proposition enhances CLEC or IPX service
▪
PSTN bound calls forced on-net between customers
▪ Value increases as size of community grows (# of telephone numbers)
Addition of voice to enterprise extranets
▪
Sharing of corporate dial plans
▪ Exchange rich media (voice, video, presence & IM) within supply chain
Disaster recovery services
▪
Automatic or manual switch to backup site
▪ Target market include financial institutions
Bundle w/ other managed services
Integration w/ IN Databases (Calling Name…)
▪ Fixed-mobile convergence (SMS, MMS,
cellular roaming clearing/settlement…)
▪
12
VoIP Peering Ecosystem
Partner
▪
Internet Peering Exchange (QoS-enabled Interconnect)
VeriSign
▪
Registry Services (Topology Publication)
▪ Security Services (Topology Hiding)
▪ Interoperability (Protocol and Vendor Variants)
Customers
Service Provider (ISPs…)
▪ Enterprise verticals (financial institutions…)
▪
13
In Network Value Proposition
Mobile network operators successful “In-Network Calling” rate plans
▪
Inexpensive “sticky” method of attracting and keeping customers
Private peering solution
▪
Allows CLEC or IPX to establish club of peering customers
▪ Force off-net calls on-net and save customer added expense of PSTN
Member opts into the managed peering
“club”, publishing their address space to all
members or a sub-set of members
Network Routing
Directory
Web Portal
(self-management - manual
entry or bulk upload)
Broadband
Telephony
User Communities
Voice (RTP) Traffic
Private IP Peering Exchange
14
IP Enabling Trader Voice Networks
Trader systems interconnect w/ resilient Session Initiation Protocol (SIP)
▪
Ring down/hotline dial plan
▪ Sites connected over redundant IP backbone
Near real-time MAC and improved reliability (disaster recovery)
▪
Calls switched seamlessly between TDM (Turrets) and IP (transport)
▪ Simultaneous or sequential ring down
Redirect Server[1] (Network Routing Directory)
Telephone Number to URI Mapping
Proxy Server[1] (SIP Forking)
Simultaneous Ring (Primary/Backup)
Primary Site
Turrets
Ingress
Egress
Primary Gateway
Disaster Recovery Site
Voice Gateway
Managed IP Network[1]
[1] All core network systems deployed to geographically redundant dispersed sites.
15
Backup Gateway
Fixed Mobile Convergence
Launched in early 2004 and branded Wireless IP Connect
▪
Building market experience thru live trials
▪ Mobile operators, internet service providers and universities
Serving-MSC model (Roaming to Wi-Fi)
▪
Microsoft Windows Mobile Pocket PC (HP iPAQ and i-mate PDA2K)
▪ SIP based soft-phone client manages handset radio interfaces
▪ Protocol inter-working function performs SIP to MAP interoperability
Enterprise
IS-41/SIP Peering (Interoperability)
2
Mobile Network
HLR
(Presence update)
1
4
(TLDN discovery)
SS7 Network
5
Gateway-MSC
16
(TLDN to IP mapping)
6
(TLDN call setup)
(Inbound Call)
3
PSTN
PBX/Media
Gateway
DID On-Demand (Peering CLECs and ISPs)
Acquiring local numbers is difficult
▪
FCC has historically required CLEC certification to obtain numbers
▪ Numbers assigned in thousands blocks by rate center – ITSPs often do
not have a sufficient customer base in any region to use a block
▪ Complex porting issues and government reporting requirements
Acquiring local numbers is expensive
▪
ISDN PRIs to connect to the media gateway
▪ Unnecessary long-distance switched access costs
VeriSign’s DID-On-Demand service gives ITSPs a single source for
ordering and provisioning telephone numbers (DIDs)
▪
Service allows the allocation of phone numbers on an as-need-basis
CLEC
17
ISP/ITSP
18