IP Communications
Services Trial
by Teresa Hastings
Objectives and Strategies
September 29, 1999
September, 1999
Evolution Overview
Voice over
Data Networks
IP
Desktop
Services
Integrated
Communications
Services
September, 1999
Slide 2
Purpose
Determine customer acceptability of IP-based
communications services
– Paradigms, features, functionality of Network (IP network), Services
and OSS
– Targeted at small-to-large businesses
– Services included:
• IP Telephony: BI-direction dialing (on/off net) with public/private dialing
• Desktop Services features, including IP Phones
• Voice messaging
Technology learning
– Implement solutions directionally consistent with NGN goals
– Not intended to be long-term service platform
– Ask questions, try technology and apply learning to long term
architecture for network, services and OSS
September, 1999
Slide 3
Strategies
Customers
Customer Selection
– 10 to 15 locations, 30% to 40% of customer site traffic on
the trial
– Will allow some reduction of features
– Willing to turn off the service at end of trial
Internal users first, then external customer(s)
Focus on learning about customer experience and
acceptability
September, 1999
Slide 4
Lab Trial High Level Objectives
Testing of customer acceptability of IP Communications Services for
business customers
Handle customer communications services on a common IP
infrastructure
– Core telephony, Desktop services, voice messaging (MWCOM trial)
– Intranet services, internet connections (company)
Demonstrate connectivity with customer ATM, FR, PL or IP/VPN
Validate OSS concepts and initial implementations
Measure performance characteristics
Demonstrate initial security solution
Reduce infrastructure, development and operations costs
Demonstrate Operations
Create small number of ‘new’ communications services for inclusion
September, 1999
Slide 5
IPOP Sites
Trial Network Enterprise Sites
INCP OSS
MWCOM Switch Firewall
Systems
IP
Phones
Router
Network
Gateways
Location and Router IP
Network Servers Network Firewall
Announcement Firewall Enterprise
Servers Router Gateway
AAA
Servers
PBX
Application
Servers
Firewall
Data Collection
Servers
September, 1999
Slide 6
Trial Core Telephony Services
Enable basic routing services
– Basic capability to process DDD/IDDD calls
• Connect existing PBXs to IP network with enterprise gateways
• Allow existing end stations to be used
– Access to private dialing plans
• Support for VNET based dialing plans
Operator service support via tandem through PSTN network.
– No support for 411/911 for Trial
– Directory assistance passed to PSTN
Support for basic announcements
– Number change, congestion,…
Internet and Intranet services continue with current product offerings
September, 1999
Slide 7
Desktop Service Features
Priority I Features
Local DOD /DID Off-Premise DOD / DID On-Net DOD / DID
Single Line Extension Class-of-Service Profile Management (Web interface)
Find Me Call Routing Call Forwarding Caller ID
Call Screening Dynamic Registration 2nd Directory Number
Call Data Records Destination Route Selection Do-Not-Disturb
Call Hold Consultation Hold Conference Services
Hunt Groups (Circular) Call Transfer End-to-End signaling from Keypad
QoS and SLA Monitoring and Reporting
Priority II Features
Caller Name Call Pickup 911
Hunt Groups (Busy Order List, Distribution by Usage) Uniform Call Distribution
Call Parking CTI (TAPI) Auto-attendant Voice Mail Interface
Voice / Unified Messaging Speech Recognition Text-To-Speech
Speed Calling Call Queuing Bridging
September, 1999
Slide 8
Security
Current Strategy:
Use IPSEC AH (authentication header) with IKE (Internet Key
Exchange) between our “known” systems, including SIP servers and
gateways
Use SIP sender authentication and message integrity for mobile clients
Long Term Strategy:
The long-term model will require development of an effective public key
infrastructure and the use of X.509v3 (or newer) certificates
Issues:
IPSEC is relatively new and does not address mobility
No public key infrastructure in place today
September, 1999
Slide 9
Performance Aspects
Network Quality OSS
Validate Media Path Performance
Customer Portal Response
• Latency
• Jitter Times
• Packet Loss
On-Time Billing/Invoicing
• % Utilization(Bandwidth)
• Voice Band Data Real-Time Billing
• Fax
• Echo Cancellation
Billing Accuracy (part of the
– Media Negotiation auditing process)
• Effects on Performance
Network Data Collection
Feature Quality
– Validate Signaling Performance Product/Rating Definition
• Post Dial Delay, Disconnects, Timelines
Hangings
September, 1999
Slide 10
Trial OSS Features
Web Portal Order Management
– Simple web portal for all user interaction with NGOSS for – Support of IPTel order management processes using
IPTel trial process management and simple web based workflow
– IPTel product and pricing plan creation via Portal Infranet capabilities
GUI
Workflow Management
Account Management – Simple web and e-mail based workflow capability
– IPTel customer account management using web server and process management
Product Management Network Data Collection
– IPTel product definition, pricing plan management – Vendor (TBD) based support for data collection of
billable sessions and events information from IPTel
Order Entry equipment and servers to support IPTel billing.
– Web OE for ordering IPTel services
Directory Services
– Orderable products and features in Portal Infranet
– Use simple web based repository as directory of
Billing users, their profiles, and other user level information
– Cycle based billing for flat rate billing Security
– Session, feature based rating and billing – Simple web server based user_id, password based
– Bill presentation via web server, printed invoice authentication and authorization
– Generation of flat files for feeding into legacy systems – Application-application security among NGOSS
applications
Process Mgmt/Middleware
– Vitria Businessware based process management for IPTel
processes and application middleware.
September, 1999
Slide 11
Initial Vendor Selection Matrix
Selected Vendors
Network Elements
Media Gateway Controller (Softswitch) a * a
Network Gateway (PVG) a * a
SIP IP Phone * a * a
Conference Server a
Enterprise Gateway w PRI/CAS to PBX a a * a a
Single Line Gateways *
Multi-Line Gateways *
Announcement Server a a a
Voice Mail Server a a a a
AAA Servers a a
September, 1999
Slide 12
Initial Vendor Selection Matrix
Software (Package Level Selected Vendors
not Feature)
SoftSwitch a * a
Instant Messaging Client a *
SIP IP Phone a a a a
Conferencing Server a
Enterprise Gateway w PRI/CAS to PBX a a * a a
Single Line Gateways a
Multi-Line Gateways
Announcement Server a a
September, 1999
Slide 13
Summary
It’snot about recreating the switched network
Build communications services on the
“disruptive technologies” of the Internet
Test alternative service paradigms
– Mixed services
– Billing and self-service
– Personal policies
– E-commerce
the open and interoperable service
Trial
architecture
Gain invaluable customer insights
September, 1999
Slide 14