This document discusses Elisa Corporation's partnership with Teleste to improve the efficiency of its daily cable network operations. Teleste provides network operations center (NOC) services to monitor Elisa's cable network and address issues remotely before sending technicians on truck rolls. The NOC helps reduce costs, speed up repairs, and improve quality of service by locating faults, correcting issues remotely using their management system, and preventing outages from spreading. The partnership has helped lower costs and improve network performance for Elisa.

1. Teleste Proprietary. All rights reserved. Company restricted
Improving the efficiency
in daily operations:
Case Elisa and Network Operations Center
ANGA COM 2015, Teleste Briefings, Matti Nurmi

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Introduction
• Network Services Finland
offering in a nutshell
• Elisa Corporation – a short
introduction
• Network Operations Center
(NOC) Case
• Q&A

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Network Services FIN: Our offering
• HFC-upgrades: Design, Planning,
Installations
• NOC-services
• HFC-Capacity increase projects including
HE & CMTS
• Field survey & documentation
• Documentation maintainance (SaaS)
• EMS- configurations & deliveries
• Fibre Installations

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About Elisa Corporation
• Finnish telecommunications, ICT and online service company
serving 2.3 million consumer, corporate and government
customers
• Provides services for communication and entertainment, and
tools for improving productivity of organizations
• Listed on Nasdaq Helsinki, revenue (2014) 1.54 billion euros,
4,100 employees

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Elisa: Key operational data
• Over 300.000 Cable-TV subscribers
• Over 460.000 fixed broadband
subscribers (including cable
modems, xDSL, FttX)

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NOC Case: How it all started
• Elisa and Teleste have a long term
relationship in products
• In Network Design, the cooperation
started in 2009
• In 2011 Cable Network – documentation
& document hosting services started,
and the cooperation was expanded to
installations - the first project Turnkey
Design & Installation for the HFC
Network in Riihimäki
• Discussions for NOC cooperation were
initiated in late 2012 and the agreement
was signed in October 2013

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Elisa’s Key Objectives for NOC cooperation
• Improving the quality of service experienced by the end-users &
reducing the repair costs caused by truck rolls
• Sorting out faults, to the extent possible, from the control room
• Anticipating capacity constraints before they become noticeable
to the customers
• Reducing costs of repairs carried out in the field, speeding up
such repairs and improving the final quality of service

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Scope of the cooperation
• Teleste's Network Operations Center, NOC, monitors Elisa's entire CATV/cable
modem network
• All glitches are analysed by NOC before any remedial operations in the field are
launched. If possible, issues are corrected through remote maintenance
• Teleste's Element Management System (EMS) allows locating quickly any network
faults and guiding the field technician directly to the relevant spot
• Disruptions can be minimised by preventing the fault from spreading in the network
and limiting its scope
• Teleste takes care of the Capacity Management and monitoring of the network
components

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Services provided to Elisa
• Second level processing of CATV and cable modem fault tickets
including fault-by-fault analysis and examination of the possibility
to repair the fault remotely
• Monitoring of several production systems, such as CMTS and EMS
• Sending the defects requiring repair in the field over to the
contractor's work queue
• Technical support and guidance for the fault repair contractor
working in the field
• Monitoring and further development of network quality

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NOC Case: EMS Overview

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NOC Case: Example #1
Outage
New amp installed
Alignment corrected via EMS

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NOC Case: Example #2
Alignment corrected via EMS +
automatic alignment on
Long-time disturbance.
High difference in return ch SNR (lowest vs highest)

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NOC Case: Example #2
SNR before:
xxxxx-cmts-01#show controllers cable 5/0/0 | i SNR
US phy MER(SNR)_estimate for good packets - 29.2270 dB
US phy MER(SNR)_estimate for good packets - 25.4604 dB
US phy MER(SNR)_estimate for good packets - 20.6789 dB
US phy MER(SNR)_estimate for good packets - 22.3437 dB
SNR after:
xxxxx-cmts-01#show controllers cable 5/0/0 | i SNR
US phy MER(SNR)_estimate for good packets - 32.4709 dB
US phy MER(SNR)_estimate for good packets - 33.4151 dB
US phy MER(SNR)_estimate for good packets - 32.715 dB
US phy MER(SNR)_estimate for good packets - 33.5764 dB

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NOC Case: Example #3
• Strong ingress detected in EMS shortly after it began.
• The return path of the polluted line blocked via EMS by NOC specialist.
• During the field repair, 23 modems offline, but service recovered for 157
modems.
SNR before:
Xxx xxx -cmts-03#sho controllers cable 7/0/2 | i SNR
US phy MER(SNR)_estimate for good packets - 16.8593 dB
US phy MER(SNR)_estimate for good packets - 16.6555 dB
US phy MER(SNR)_estimate for good packets - 16.1391 dB
US phy MER(SNR)_estimate for good packets - 15.8220 dB
SNR after:
Xxx xxx-cmts-03#sho controllers cable 7/0/2 | i SNR
US phy MER(SNR)_estimate for good packets - 30.295 dB
US phy MER(SNR)_estimate for good packets - 30.2488 dB
US phy MER(SNR)_estimate for good packets - 30.1329 dB
US phy MER(SNR)_estimate for good packets - 34.8415 dB

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NOC Case: Capacity increase projects
• Teleste is supporting Elisa also in HFC capacity increase
projects, with:
• Headend configuration and cabling
• CMTS configurations
• Field works
TX4
TX2
TX1
RX1
TX3
MUX
TX1
RX1

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Expansion of the NOC Case: Headend Operations
• Original ”Go Live” in October 2013.
• The cooperation was expanded in Feb 2014
into Headend Operations
• Teleste takes care of the daily operations
and technical maintainance of Elisa’s Linear
TV Headend

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NOC Case: Benefits achieved
• A means to create a unified,
standardised procedure for carrying
out truck-rolls, only when necessary
• Cost savings due to fewer truck-rolls
per subscriber needed
• Reduced mean time to repair thanks
to preventive measures and remote
management
• Improved quality of service
experienced by the customer through
faster responses to irregularities in
the network and problem prevention