VeriSign IP Connect Connecting communities of interest

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VeriSign IP Connect Connecting communities of
interest

• Internet Telephony Conference (VP-02 and VP-03
  Sessions)
• Sean Kent Product Manager
• Email skent_at_verisign.com
• Tel [phone]

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Agenda

• Technical Issues of VoIP Peering
• (VP-02) Thursday 01/26/06 1230-115PM
• VoIP Peering Business Case Studies
• (VP-03) Thursday 01/26/06 130-315PM

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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
  Fall04
• 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

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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

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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 Databases
CNAM
LNP
HLR
PSTN/PLMN
Call Agent/ Softswitch
Trunk Gateway
Application Server

• PSTN Breakout Gateway/Border Element Selection
• Intra-Community Service and Location Discovery
• Trigger SIP/ENUM reachable PSTN Databases

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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 discovery (SPid or NS record)
Tier 2 ENUM Server
Tier 2 ENUM Server
Service and location discovery (NAPTR record)
Border Element
IP Peering Exchanges
Call Agent
Call Agent
Border Element
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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 anothers topology
data but may not view one anothers data via
portal
Secure Self-Management Portal - Upload service
providers dial plan or enterprises corporate
directory - Optionally establish closed user
group of peers or opt all-in peering with all
Peers
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Enterprise Peering

• Introduction of inter-working equipment on
  customer premises
• Security and interoperability across major
  equipment vendors

Self-Management Portal - Publication of corporate
directory - Management of peering enterprises
Signaling encryption (TLS) Authentication (HTTP
Digest) Private dial plan Telephone to URL
address resolution Fault tolerant routing and
load balancing
Enterprise A (Site 1)
Routing Directory
Intra-Enterprise

• Security
• Application level NAT (topology hiding)
• Signaling encryption (TLS)
• Interoperability
• Legacy PBXs
• H.323 inter-working w/ SIP
• Vendor variants

Enterprise B
Enterprise A (Site 2)
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Agenda

• Technical Issues of VoIP Peering
• (VP-02) Thursday 01/26/06 1230-115PM
• VoIP Peering Business Case Studies
• (VP-03) Thursday 01/26/06 130-315PM

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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

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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)

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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)

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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

Network Routing Directory
Web Portal (self-management - manual entry or
bulk upload)
Member opts into the managed peering club,
publishing their address space to all members or
a sub-set of members
Broadband Telephony User Communities
Voice (RTP) Traffic
Private IP Peering Exchange
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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 Server1 (Network Routing
Directory) Telephone Number to URI Mapping
Proxy Server1 (SIP Forking) Simultaneous Ring
(Primary/Backup)
Primary Site
Turrets
Egress
Ingress
Primary Gateway
Disaster Recovery Site
Voice Gateway
Managed IP Network1
Backup Gateway
1 All core network systems deployed to
geographically redundant dispersed sites.
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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)
Mobile Network
HLR
(Presence update)
SS7 Network
(TLDN discovery)
(TLDN to IP mapping)
PBX/Media Gateway
(TLDN call setup)
PSTN
Gateway-MSC
(Inbound Call)
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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
• VeriSigns 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
ISP/ITSP
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