Embed Size (px)
Citation preview
Company Overview• Headquarters: San Diego, California
– Founded June 2002– Also founders at Nuera Communications
• Deployed in over 300 production networks in CLEC, MSO, and wireless carriers.
• VSX deployed in long distance, prepaid, E911, and residential broadband applications
• SPX deployed in Hosted PBX, Wireless, Cable, and IP-Centrex applications
• VSXi introduced December 2009: Internet Telephony Product of the Year
2
Product Line Overview• VSXi high performance session control
– RSX/CPX transitioning into ROME HRS/INX– Highest CPS of any session controller– Peering and Access Editions
• Transcoding– MST for use with INX/CPX– TSX for standalone use
• ROME HRS– Intelligent and high capacity route server– Capable of controlling other SIP devices
• ROME NLS– High capacity LNP database server
3
Product – VSXi • VSXi provides session control functionality
– Winner, Internet Telephony 2009, Product of the Year
• Key feature / functionality for service delivery – Topology hiding and prevention from DDOS attacks – Firewall & network address translation (NAT) traversal– Rich routing features and management of 30M+ routes– Protocol interworking with SIP and H.323
• Value-added applications – SIP trunking, transcoding, mobile peering, & CALEA
• Deployment – Provided in high availability configurations for non-stop
reliability / uptime; better than 99.999% in the field– Single system for subscriber & network-facing
functions 4
INX System
• Capable of 50,000 sessions; 1400 CPS• Service Ports: Virtual IPs for signaling/media• HA designed for non-stop operations
VSXiVSXi
Service Ports IPs owned by Active VSXi
5
Wholesale Termination
6
Wholesale Termination
PartnerVSXi
VSXi
Wholesale Termination
Carrier
2G or 3G Mobile Service
Provider
Fixed Line Service Provider
IPX Carrier
4G VoLTE Provider
ASP / Cloud Service Provider
ROME Do-Not-Call
LNP
IP Network
• High capacity: up to 1400 calls per second / node
• Flexible low cost geo-redundancy
• Intelligent routing: includes Jurisdictional routing on LRN & PAI
• ENUM, Do-not-Call, and LNP dipping
• Can handle 30M+ routes
• Intuitive GUI for rapid implementation / training
• Optional transcoding by route selection
Note: Distributed , geo-redundant deployment shown above.
Business Voice & SIP Trunking
7
VSXiVSXi
Business Communications
Provider
Over-the-Top Service Delivery
Facilities-Based Access
Network
IP NetworkSubscriber-Facing Session Control
Wholesale Termination Partner 2
VSXi
Wholesale Termination Partner 1
Network-Facing Session Control
Feature Server (e.g., BroadWorks)
IP PBX Hosted
SubscriberIP PBX Hosted
Subscriber
• Subscriber and network-facing session control in a single system
• Highly flexible deployment options to support distributed network architectures
• Commercially deployed with leading feature / application servers / IPPBXs
• Proxy registrations or can act as Registrar for feature server(s)
• Billing and charging support via CDRs
• Support Lawful Intercept / CALEA
Note: Distributed deployment shown above. Subscriber and network-facing functions can be managed on single VSXi system.
VSXi for Enhanced Applications
8
VSXi
Wholesale Termination Partner 2
Wholesale Termination Partner 1
IP Network
Network-Facing Session Control
Enhanced Services / Prepaid Server
VSXi
Over-the-Top Service Delivery
Subscriber-Facing Session Control
• Subscriber and network-facing session control
• Support Radius for pre-paid and other real-time billing applications
• Commercially deployed with IVR and other enhanced communications apps
• High CPS for inbound / outbound call center / dialer applications
Note: Distributed deployment shown above. Subscriber and network-facing functions can be managed on single VSXi system.
Key Feature: DDOS Protection
9
Co-Location 3Co-Location 2Co-Location 1
Provides Network Topology Protection and Resource Hiding
Public Border Points
VSXi VSXi VSXiDDOS Attacks
• Automatically enforced blacklists for remote IPs
• Intelligently applied to IP addresses or Subscriber, based on feature server response
• Controllable timers allowing various block periods
• Applies to Registrations, Invites, Subscribes, Option polls and protocol errors
DDOS Attacks
Key Feature: Call Admission Zone • Customer and vendor call admission control enforced across all
network elements on Trunk ID basis – Can manage CPS, RPS and session count across pool of VSXi systems – Configured in single GUI screen
10
Co-Location 3Co-Location 2Co-Location 1
Pooling of CPS, RPS and Session Count per Trunk ID
Shared Pool of Sessions
Trunk ID 10,000
Example: CPS capped at 100 cps for TID 10,000 – managed across Co-Lo 1, 2, & 3
VSXi VSXi VSXi
Key Feature: Network License • VSXi “Network License Zone” shares a pool of session capacity
across a network of VSXi hardware• Better support for geographic redundancy and distributed hardware • Shown below: 6 nodes in 3 high availability pairs supporting 3
interconnect points - pool of sessions shared across all nodes
11
Co-Location 3Co-Location 2Co-Location 1
Session license capacity shared across all 6 nodes
Network License Zone
VSXi VSXi VSXi
Network License Example • Enables more efficient use of session capacity across nodes• Shown below: network snapshot of traffic across 6 nodes that are
licensed for a total of 5000 sessions
12
• NLZ loading is 4500 sessions at snapshot • Each co-location better able to handle localized traffic bursts
using shared pool of buffer capacity
3000 sessions
750 sessions750
sessions
Network License Zone
Network Traffic Snapshot
Co-Location 3Co-Location 2Co-Location 1
VSXi VSXi VSXi
Modular System Design
13
Signaling Plane
Media Plane
SIP & H.323 Traffic
RTP TrafficH.248
Query
MSTMSX
INX
HRS
INX SIP & H.323 Traffic
RTP Traffic
Signaling Plane + Media Plane
• VSXi functionality can be distributed across specialized server hardware (left) or deployed on an integrated server (right)
• Offers service providers maximum flexibility and scalability
HRS: Route ManagementINX: Call Processing MSX: Media ProcessingMST: Media Transcoding
INX for Sub Access or limited routing apps
GSMA IPX Operator
• Enables intelligent SIP-I session switching and media optimization with Pathfinder ENUM
14
VoIP partner#1
SIP-I Call Setup
VSXi HA Pair
Neustar PathfinderMNO Network B
MNO Network A
IPX Network Backbone
ENUM Route Lookup Media Path
MST2 Transcoder
• 1U server with Sansay DSP card• Licensed on a network wide basis• Transcoding session count is tracked along
with but separate from NLZ• Provides added value for applications:
– Long tail echo cancellation up to 728 msec– DTMF translations– T.38 translations
15
MST2 Transcoder (cont)
• Highly scalable yet low cost per port– Add up to 4000 sessions per 1U rack space– N:1 redundant and NLZ make for lower TCO
• Integrated into TID config for easy routing– Makes routing independent of codec concerns
• Redundant RTP (RRTP) for best OTT quality• Video transcoding supported at limited size
16
TSX Transcoder
• Integrated INX/MST2 for easier deployment• Has a new system type with limited functions
– This is similar to Peering Edition; ie, lower cost
• Still supports NLZ for redundancy and building distributed networks
• HA Redundant for highly reliable POPs• All DSP (audio) aspects are same as MST2
17
Introducing ROME
• HRS – High-speed Route Server• Centralized management of Routes
– Simplifies route management – Improves system operating performance – Expands number of routes operators can manage
• Enables more sophisticated routing – Enables simple & flexible jurisdictional determination – Supports up to 50 alternative routes
18
ROME Operations
• Stateless server, routes held in RAM for extremely fast processing
• Queried via SIP protocol• Route uploads do not affect system CPS• Server updated / managed via GUI and SOAP • VSXi can recurse with TID mode
– Provides compatibility with variety of policy servers (Nuestar Pathfinder, ATT, etc)
19
Functioning in the Network
20
INX
ROME
INX
MSX
INX INX
Query & Route Selection
MSX
ROME Accepts queries and provides routes across INX nodes
Route Management Layer
Session Processing and Media
Management Layer
• ROME can be added to existing VSXi network
• ROME typically deployed at Super POP or core network hub
• ROME deployed in LB mode with Active-Active systems
• Can also be deployed in geo-redundant config
Update &
Manage
“Master-Slave”ROME
HRS Routing
• Route process
21
Invite:DNIS/RN
OTG
DCCTable
RouteTables
JD AssignTables
Consortium DNIS list
LERG basedJurisdiction
Routing Sequences
Consortium Match Found
300 Repsonse DTG list
Summary
• VSXi: key capabilities for operator profitability– Engineered with deeper route management, superior calls per
second handling, and out-of-the box high availability
• Sansay: relentless focus on customer satisfaction– Rapid development cycles and intro of new features– Majority of sales driven by customer reference
• Succeeding vs. competition – VSXi performance proven via direct testing vs. competitors – Majority of operators who trial Sansay turn into customers
22
