Colt VoIP Access. 2010 Colt Technology Services Group Limited. All rights reserved.

Business requirements Are you looking for ways to simplify management of national or even international voice services and improve network utilisation? Do you want to control or reduce voice services costs across your European locations? Are you looking to integrate network technologies over a single common infrastructure? Should your voice and data infrastructure reflect disaster recovery and business continuity options? Do you want to lay down the foundation of a network that supports Unified Communications and Collaboration (UCC)? 2

Colt VoIP Access What is it? Colt VoIP Access is Colt s business grade IP-trunking service Colt VoIP Access is a full inbound and outbound service that connects your IP PBX to the PSTN by using SIP or H.323 IP PBX Service demarcation Colt device Colt network Colt VoIP Access Node (incl. gateways) PSTN IP Phones 3 At your premises: Connect the IP interface of your IP PBX to the LAN interface of the router device In the Colt network: VoIP Access is delivered via a fully redundant Softswitch platform and PSTN gateways

Colt VoIP Access simplifies communication Colt can help organisations discover new cost saving opportunities and boost efficiency by using Colt VoIP Access Colt VoIP Access Centralisation Multiple local PSTN circuits and breakouts are no longer necessary Consolidation One contract and one service for a converged data and voice network in order to increase economies of scale Simplification Simplify administration with business-wide dial plans and handle a converged network by working with one single provider 4

The logical upgrade from TDM voice services Standard TDM voice service Separate voice and data networks Multiple PRI circuits and PSTN breakouts at each location Need for physical provisioning and maintenance at each site Local dial plans at each location Limited flexibility for business continuity No access to UCC services Colt VoIP Access Single, converged network for a costeffective way to carry both voice and data Centralised breakout points to the PSTN for multiple national or international sites Manage local services from a central site Centralised business-wide dial-plans with local telephone numbers for any location Enhanced IP resilience, security, disaster recovery and business continuity options Leverage VoIP technology for UCC applications like Presence and Unified Messaging 5

TDM voice services vs. Colt VoIP Access Separate voice and data networks across all customer sites Headquarters Colt VoIP Access with a converged network across all customer sites Headquarters IP data PBX Branch 1 Branch 2 IP data plus IP PBX Branch 1 voice traffic Branch 2 Customer WAN Customer WAN PBX Local PRI circuit and breakout for voice traffic PSTN PBX Local PRI circuit and breakout for voice traffic Colt VoIP Access PSTN 6

Improved operational efficiency Single, converged network for a cost-effective way to carry both voice and data Centralised scalable and granular breakout point to the PSTN for multiple national or international sites Centralised business-wide dial-plans with local telephone numbers for any location Manage local services from a central site Better support of UCC applications-like presence, and creating a consistently productive working environment 7

Better cost control Reduction of local PRI circuits and gateways Reduction of monthly recurring cost for separate networks Centralising network capacity and sharing bandwidth Consolidation of service and maintenance contracts Free on-net calls between customer sites 8

Colt VoIP Access what is inside for you? Provides customers with a number range new or existing Colt geographic numbers or ported where available Supplementary services like number presentation/restriction Compliant to authority requirements such as emergency calls and legal interception Supported codecs are G.711 or G.729a Fax support (T.38) Recommended configuration parameters for your IP-PBX are provided, in order to ensure full interoperability with Colt service Customers can easily analyse their Voice call statistics via a webbased tool (Call Analyser) 9

Access options Different access options correspond to different needs and SLAs: Dedicated IP Connection (voice only) with businessgrade SLA Dedicated access Combined with Colt IP VPN: converged voice and data solution with business-grade SLA Converged access (VPN) Colt VoIP Access Internet access from Colt Colt IP Access: converged Voice and Internet solution with true VoIP QoS Unbundled internet access Internet is already provided to the customer by a 3rd party ISP. No SLA from Colt 10

On-going investments in interoperability tests Interoperability testing with major software releases of the leading IP PBX vendors across Europe in order to ensure a high service quality Colt is one of only very few Service Providers across Europe that is Avaya DevConnect tested and compliant with the Avaya SIP protocol 11

Summary of customer benefits Service quality Cost savings Operational efficiency Interoperability tests with leading IP PBX vendors across Europe Seamless rerouting of traffic in the event of disasters, using optional inbound call rerouting Calls are carried on dedicated network circuits and routed over a secure IP connection without passing the public Internet* Reduction of local PRI circuits Usage of free on-net calls between customer sites Reduction of monthly recurring cost for separate networks Converged network to carry both voice and data Centralised dial plans and centralised breakout point to the PSTN Management of the services from a central site 12 *Excluding the Internet access options

Productivity and efficiency Colt Voice services portfolio UCC applications IP Voice Solutions Intelligent Network Services TDM Voice VoIP Access Dedicated Voice Network Integrated Voice & Data Managed Voice Unified Communications Colt Voice services is a portfolio of forward thinking customer solutions that can help evolve your communications strategy It is a full range of Voice, IN and VoIP services, delivered either as an standalone service or as a component of a large solution 13 Convergence and integration: from voice to integrated UCC applications

Why Colt? We commit to being a long-term business partner - not a service provider Interoperability On-going interoperability tests with leading IP PBX vendors in order to ensure a high service quality End-to-end accountability End-to-end accountability for the performance across 13 countries and seamless integration with other services Infrastructure On-going investments in latest technologies, like the IP Multimedia Subsystem (IMS) platform Experience Proven track of successful implemented VoIP and UCC projects across Europe 14