1. Citel. The VoIP Migration Company VoIP Migration: The KISS Principal in Action – A Case Study Presented to April 13, 2011

3. Presentation Preview Introduction Case Study Summary Questions and Answers

4. Executive Overview Founded 1995 in Nottingham, UK as PBX software developer Two decades of engineering and development Privately held US company Global Presence; HQ Amherst, NY Worldwide deployments Partnerships with leading telecom software and hardware companies such as BroadSoft, Avaya, Metaswitch, Tadiran, Asterisk, Shoretel, Mitel, Cisco, etc.

5. Ireland – Economic Background: –As of 2008, ranked the 5 th wealthiest country in the OECD-28 rankings A study by The Economist in 2005 found Ireland to have the best quality of life in the world –High growth led to high levels of inflation, particularly in the property market

6. Ireland – Economic Background - contd: –Financial Crisis of 2008 Collapse of Irish property bubble –Highest level of household debt in the world Economic growth declined dramatically Bank Solvency –Lending to builders and developers equaled 28% of all bank lending systematic risk of triggering an even more severe financial crisis in Ireland if they were to call in the loans as they fell due

7. Case Study Irish Health System –Modern and reasonably efficient –Every resident in Ireland is entitled to free public health coverage Two categories of coverage Government financed; –Funded by general taxation Subject to Government oversight

8. Case Study Irish Health System - contd. –The Health Service Executive (HSE) manages the delivery of the entire health service as a single national entity. –Four HSE administrative areas

9. Case Study Hospital Constructed between 1988 and mid 1990’s One main building and number of smaller external buildings 537 beds –474 in patient beds One of eight cancer centres of the HSE National Cancer Control Programme

10. Case Study Hospital – Existing Phone System Existing PBX approaching EOL E1 between Main Building and External Locations 1100 plus digital handsets 300 plus analog handsets Approximately 190 miles of Category 3 cabling

11. Case Study Hospital’s Telecom Issues –Existing PBX had reached EOL. –Key Concerns for Replacement: Cost Handset Retention Minimize Hospital Disruption Maintain Existing Phone Features Resilience / Reliability

12. Case Study – Customer Options Implement new Hybrid PBX / IP PBX using existing supplier –Pros: System Familiarity Reliability/Availability/Security Scalability –Add new VoIP phones as capability expanded –Cons High Up Front Costs –System very expensive –Some upgrading required for IP side of things Ongoing PBX maintenance costs

13. Case Study – Customer Options Implement Pure IP Telephony Solution –Pros: Reliability/Availability/Security –Some very well established names on market Scalability Can duplicate PBX phone features

14. Case Study – Customer Options Implement Pure IP Telephony Solution - contd –Cons Rip and replace is expensive –New Cabling Required (190 miles) - Category 5 or 6 required; –New IP phones: »Have to teach users how to use; »Call for phone retention; –Power over Ethernet switches –High Up Front Cost

15. Case Study – Customer Options Implement Multi-Vendor IP Telephony Solution –Two Options Option 1 – Use ADSL based wiring re-use devices Pros –Utilizes existing cabling, thereby reducing disruption and cost Cons –Requires IP phones and additional hardware »Cannot use existing phones, have to upgrade to IP phones

16. Case Study – Customer Options Implement Hybrid IP Telephony Solution –Two Options continued Option 2 – VoIP Gateways – connect to the ISDN interface on the legacy PBX Pros –Enables retention of existing phones and cabling infrastructure Cons –Requires retention of an EOL PBX.

17. Main Objections to Possible Options  Heavy Investment in Legacy Equipment and Cabling  Investment to rewire with Category 5/6 Cable  Power over Ethernet (PoE) Switch Required  Disruption of work environment while cabling and PoE installed  Investment cost of new IP phones  Disruption of work flow as employees require training on new functionality of IP phones

18. Case Study – Customer Options Tadiran’s Coral Sea Softswitch and Citel’s Portico™ TVA™ –Diacom – Systems Integrator One of Ireland’s leading integrated solutions providers 20 years experience in telcom Works with all size of clients across voice, data, video and emerging technologies Customer base, who’s who in Irish business and public life, including Irish Rail, An Garda Siochana, HSE, Greencore, University of Limerick, Fyffes, Department of Defence and The Defence Forces. Works with Nortel, Siemens, ShoreTel and Tadiran

19. Case Study – Customer Options Tadiran’s Coral Sea Softswitch and Citel’s Portico™ TVA™ –Tadiran Coral Sea Softswitch complete VoIP unified communications solution. –real-time, fully distributed system –built-in redundancy and fault tolerance. –User-centric by design »provides multiple applications to meet the changing needs of users while offering businesses of all sizes great flexibility in meeting their communications needs.

20. Case Study – Customer Options Tadiran’s Coral Sea Softswitch and Citel’s Portico™ TVA™ –Customer Concern Resolution Cost – –No Need for IP Phones; –No Need to Upgrade Cabling –Minimal Impact on Workplace Prior to and During Rollover Handset Retention –SIP enabled existing Phones Maintenance of Existing Phone Features –Citel ensured that all existing phone features were mapped out so switch over was simple and problem free Resilience / Reliability –Did not want a single point of failure so duplicate switch installed at main hospital with backups at each of other two facilities

21. Existing cabling 25 Pair Amphenol PSTN Service Provider Current TDM Customer Scenario

22. IP Network Existing cabling 25 Pair Amphenol Router SIP Trunk Provider Premise Based IP PBX Offering with Citel TVA Coral Sea Softswitch Telephone VoIP Adapter

23. Citel’s Portico™ TVA™

24. Citel’s Portico™ TVA™ Solution SIP media adapter designed to convert existing P-Phone, analog and digital proprietary PBX telephone sets into “SIP Endpoints”

25. Questions & Answers Thank you for Listening Questions? For further information: sales@citel.com 206-957-6270