Squire Technologies: Class 4 Softswitch

www.squire-technologies.com
Class 4 Softswitch
Date, Audience details
1
Squire Technologies
SVI_C4

SVI_C4 Class 4 Softswitch
► At the core of the SVI_C4 Class 4 VoIP SoftSwitch is a powerful, robust
signalling engine offering :
► Comprehensive VoIP protocol conversion between SIP/H.323/SIP-I/SIP-T
signalling
► Scales from 500 simultaneous calls to 10,000 simultaneous calls in a single
chassis – upgrades delivered through software license keys
► Full redundancy options
► Intelligent Call Routing engine
► RTP Media Proxy Support
► Add on modules
► Wholesale Billing
► Network Monitoring
► SIP Registration
► External APIs
SVI_C4 Overview
2

► Field proven
► Interconnected against a wide range of
vendor equipment including :-
► Media Gateways, IADs, Softphones
► SBCs, SoftSwitches, IVR Systems, Gatekeepers
► Integrated with a range of routing and
billing systems both proprietary and over
RAD
Coupled with Squire Technologies post sales
support and product enhancement services
allows Squire Tech to rapidly engineer solutions
to non standard VoIP protocol implementations
– i.e. Non standard SIP implementations
3
Overview
Broadband
First released in 2004 the SVI-C4 has been deployed globally in a wide
variety of networks insuring the SVI-C4 is :-
VoIP
Carrier
GSM
PSTN

Overview
4
Deployment Models
► VoIP Protocol Converter
► Wholesale
► Private SIP Networks
Interfaces and Protocols
► VoIP Protocols Supported
► PSTN Physical Interconnect
► Benchmarks
Operational Functionality
► Intelligent Call Routing
► External RoutingAPIs
► Billing Interface
► OA&M
► Security
Redundancy Model
Delivery
Payment Terms

SVI-C4 Class 4 Softswitch
5
Deployment Models
+ Add on Modules
Wholesale Billing
Network Monitoring
SIP Registration
External APIs
Option 1 Option 2 Option 3
VoIP
Protocol
Converter
Wholesale
VoIP
Private SIP
Networks

► VoIP Protocol Converter
► Clients able to take advantage of core
SVI-C4 functionality to seamlessly
manage and interconnect VoIP networks
whilst concentrating on delivery of value
added services
► Full SIP/H.323/SIP-I/SIP-T interworking
support
► Powerful routing engine providing
incoming/outgoing call/digit manipulation,
retries, load balancing etc
6
Deployment Model 1
SBC
H.323
PSTN
PSTN/
VoIP
SIP
PBX
Application
Server

► Wholesale
► The SVI-C4 is deployed by wholesale
VoIP carriers
► SVI-C4 is either integrated into existing
billing infrastructure or it is supplied with
an add-on wholesale billing platform.
► Provides support for LCR, time of day,
quality of route
► Network monitoring provides statistics on
ASR, PDD etc…
7
Deployment Model 2
Wholesal
e VoIP
Carrier
Multi-lateral
Carrier
Peering
VoIP
Arbitrage
International
Long
Distance
Network Monitoring
Wholesale Billing Module

► Private SIP Networks
► The SVI-C4 provides support for small to
medium private SIP subscriber based
networks – providing full SIP Registration
and Authentication capabilities allowing
clients to build large scale subscriber
databases
► Clients can use in-house SQL databases
+ application builders to build value –
added –services through SQLAPI
► Support for multiple SIP endpoints - SIP
phones, soft phones etc.
► NAT / PAT support
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Deployment Model 3
VoIP
Carrier
Broadband
External APIs
SIP
Registration
Subscriber
Database
SIP Endpoints
SIP Softphone
SIP Clients
NAT SIP Clients

9
VoIP Protocols Supported
► RFC 3261 Session Initiate Protocol
► RFC 2976 SIP INFO Method
► RFC 3398 ISUP-SIP Mapping
► RFC 3515 Refer Method
► RFC 3578 Overlap
► RFC 2327 Session Description
Protocol
► RFC 3581 An Extension to the
Session Initiation Protocol (SIP) for
Symmetric Response Routing
► RFC 3665 Session Initiation Protocol
(SIP) Basic Call Flow Examples
► RFC 3666 Public Switched
Telephone Network (PSTN) Call
Flows
► RFC 3891 "Replaces" Header
► RFC 3892 Referred-By Mechanism
► RFC 3311 Update Method
► RFC 4566 Session Description
Protocol
► RFC 5806 Diversion Indication in SIP
► RFC 3398 ISUP to SIP Mapping
► RFC 3326 The Reason Header Field
► RFC 2543 Session Initiation Protocol
► RFC 3262 Reliability of Provisional
Responses
► draft-levy-sip-diversion
► draft-ietf-sip-privacy
SIP SIP-T
► RFC 3372 Session Initiation Protocol for
Telephones (SIP-T)
SIP-I
► ITU Q.1912 for ISUP/C7-to-SIPinter working
H.323
► ITU Version 2 and 4
► Fast and Slow Start
► Gateway and Gatekeeperinterconnect

10
PSTN Interconnect
► Integrated SVI_MGproduct offering
SS7, SIGTRAN, ISDN, CAS, R2
interconnect
► Interconnectover industry standard
VoIP <> PSTN gateways Cisco,
Quintum,AudioCodes, Asterisk,
Mediatrixetc.
► Specialist SS7/ SIGTRAN interconnect
in conjunction with SVI_MGC + Cisco,
AudioCodes, Alcatel-Lucent
gateways
PSTN PSTN
3rd
Party
G/way
Seamless interconnect into PSTN via either:

11
Performance Benchmarks
Test Scenarios
Message Flow
SIP-I >> SIP SIP >> H.323
H.323 >> SIP SIP <> SIP
Results
BHCA 720,000 1,440,000
Call attempts/ sec 200 400
% CPU Usage Avg. 24% Avg. 8%
Call Completion Rate 99.9998% 99.9998%
Simultaneous Calls Supported 10,000 10,000

► Incoming Calls Routed
based on
► Called and Calling Party
Information
► Protocol Information
► Originating Network
► Trunk Group, Hunt
Group,
VoIP Destination,
Protocol
► Time Of Day
► Cost Of Route
► Outgoing Call Manipulation
► Called and Calling Party
Information
► Protocol Information
► Enhanced Call Completion
Algorithms
► Reattempt call
► Same Destination
and/or different
destinations
► Reattempt based
on call failure
reason
► Load share across
different destinations
► Hunt high, low, odd,
even, incremental,
detrimental, %,ASR
► Other
► Reject Call with Protocol
Reason
► Reject Call with
announcement
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Intelligent Call Routing
Digit Routing
Timeof Day
Quality of Route
Digits + LCR
9123568686 91
81
11
ASR 40%
ASR 50%
ASR 75%
91+10cents
91+11cents
91+12cents

13
External Routing APIs
VoIPVoIP
Client’s
RADIUS Server
Client’s
SQL Database
HTTP Server
► HTTP
► Call back Service
► RADIUS
► RADIUSAuthorisation response contains
routing information
► SQL
► SVI calls SQL stored procedures into
customers SQL database which returns
routing information
► PostgreSQLand MYSQL support
GSM Modem

14
Billing Interface
VoIPVoIP
Client’s
RADIUS Server
Client’s
SQL Database
HTTP Server
► Call Data Records (CDRs)
► On board CSV files contain all call attempts
► Over 36 fields of call information
► RADIUS Server
► FullAAAsupport
► Integrated with many third party RADIUS
► FTP Server
► Client or Sever controlled CDR retrieval
► SQL
► Direct Writing of CDRs to client’s SQL DB
► SVI_Wholesale
► Squire wholesale billing application
SVI_Wholesale

► Web based GUI
► SVI_MS Management
System
►Secure Remote Access
►Full Configuration
►Monitoring
►Debugging
► Command Line
Interface
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Features: OA&M – Operation,Administration and Maintenance

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OA&M – Operation,Administration and Maintenance
SVI MS
► The globally deployed SVI platform empowers
its users with an advanced level of expertise
and functionality.
► The SVI-MS management system features a
comprehensive toolkit combining ease of use
and the ability to run, analyse multiple systems
both safely and securely, providing efficient:-
► Configuration - Real time system setup,
onboard resource and call routing
management
► Monitoring - Comprehensive statistical
service monitoring and system status tool
► Debugging - Rapid tracing, diagnosing and
CDR analysis compatible with Wireshark
and Ethereal

17
OA&M – Operation,Administration and Maintenance
► The web based GUI brings the user powerful
tools to manage system resources, delivering a
real-time OA&M, offering:-
► Dashboard interface
► Wizard library
► Customisation – via XML
► Secure multi-user features
► Extensive help resources
► Compatibility with the entire SVI range

18
OA&M – Command Line Interface
► Configuration
► High speed real time
configuration for expert
users
► Full ‘secure’remote
access
► Administration
► Low Level MMI Interface
► Full onboard database
inspection and control
► Real time resource
status display
► Controlling system
resources
► Maintenance
► Configurable logfiles,
capturing all aspects of
system performance
► Compatible with
Wireshark and Ethereal
for full graphical protocol
traces
► Performance
► Extensive onboard
CDRs and statistics
generation
► Call minutes, ASR, PDD,
ACD, etc
► Resource Statistics
► Trap Reports
► Network Monitoring
► Trap capture
► Statistic monitoring,
Graphing andAlarming

The sophisticated SVI platform, brings secure
reliability and a proven global pedigree for network
operators, incorporating:-
► System
► Integrated Firewall
► Username, password protected
► Secure external protocols used for access (SSH,
SCP)
► Only process calls for configured VoIP
Destinations
► Reports on unauthourised access
► Client Challenge procedures
► Radius
► Authorisation and Authentication
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Security

► 1+1 Dual Plan Worker/ Hot Standby
► Database and signalling information
checkpointed between planes
► Replicated hardware and software
► Maintain SIP calls in answer on
failover
► Eliminates single points of failure
► Five Nines uptime (99.999%)
► Sub 1 second switchover time
► Calls in session maintained
► Single IP service address using VIP
technology
► Real time Maintenance upgrades
20
Redundancy model
VoIP
VirtualIP
Worker
Data & Signalling Check Pointing
Hot Standby

21
Additional information: Delivery
Boxed Product
We ship the SVI to you pre-configured and
installed on a Squire Technologies 1U
Server
Remote Software Install
SVI Software installed remotely
onto server supplied
by the client
Internet

► Visit www.squire-technologies.com
► For further product information on SS7 VoIP products for
carriers, operators and service providers, plus case
studies and customer testimonials.
► Email sales@squire-technologies.com
► To contact and member of our sales team
► Call +44 (0)1305 757314
► To speak with us today
22
Further information

64 High West Street, Dorchester,
Dorset. DT1 1XA UK
Squire Technologies

Squire Technologies: Class 4 Softswitch

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