Qwest ® OneFlex™ Hosted VoIP

1. Qwest® OneFlex™ Hosted VoIP 08/2004

2. Contents: • VoIP Overview • VoIP Comparison • Why Qwest® for VoIP? • OneFlex™ Hosted VoIP – Overview • OneFlex Hosted VoIP Description and Packages • Benefits • Technical • Summary

3. VoIP - Overview • What is VoIP? • VoIP means Voice over Internet protocol. • VoIP is an IP application that provides real time, two-way voice capability in IP over a broadband connection. • Over time, VoIP may offer new products and services not available over the legacy public switched telephone network (PSTN).

4. Why VoIP? • Convergence cost savings • You can consolidate multiple traffic types, including IP, voice, video and data over a single network. • Scalable • You have control over services - the “traditional” central switching function is simplified. • Flexible • You receive support for a broad set of services (voice, video, messaging). • Extensible • Enables addition of new applications yet to be defined. • Standards based • IP, UDP, RTP, SIP IETF RFC 3261 thru 3265. Various compression mechanisms (G.711, etc), soft client support.

5. Fundamental Shift in Perspective Location-CentricCommunications (Calls are placed to a physical place) Individual-CentricCommunications (Calls are placed to a person) The Individual The Household Phone

6. Hosted vs Premises-based VoIP • Premises-based VoIP – industry today • Equipment capital investment model: • Requires on-site equipment management expertise and/or outsourcing. • May be cost effective for deployments with a significant density of users per location. • May be cost effective when existing PBX equipment is not depreciated and can be easily upgraded to support VoIP. • Reliability - increases redundancy requirements (cost) for sites that host VoIP services. • Hosted VoIP solution – Qwest market leader • Low capital investment. • Technology protection. • Daily equipment maintenance tasks performed by the service provider. • On-site personnel can focus on providing the best service to the end user. • Cost effective for businesses with multiple geographically dispersed locations and a low-to-medium number of users per location. • Converged data and voice service from one provider with a single point of contact for trouble resolution. • Reliable - intelligence is in the cloud. • Provides an additional level of flexibility that may be hard to achieve with premises- based deployment. • Feature transparency across the entire United States.

7. Qwest® Uniquely Positioned for VoIP • Early adaptor of VoIP in the long-distance backbone • Expertise in IP • State-of-the-art IP backbone • Expertise in long-distance • Expertise in local service • Expertise in hosted applications

8. Qwest OneFlex Hosted VoIP is an Internet protocol (IP) application that provides real-time, two-way voice capability in IP over a broadband connection. OneFlex has an extensive set of standard features including voice mail and find me/follow me services. A suite of browser-based applications provides control of business communications, including find me/follow me controls, Microsoft® Outlook® integration with click-to-call functionality, call logs and integrated messaging. Additional features include client billing codes and PC-based administration tools. Qwest® OneFlex™ Hosted VoIP - Overview

9. Qwest OneFlex has two package options designed to meet your specific needs and calling patterns—a combination of local, long-distance, voice and office features. The packages are OneFlex™ Office and OneFlex™ Office Enhanced. The service works with Qwest iQ Networking™ Internet Port (formerly known as DIA). Qwest® OneFlex™Hosted VoIPPackages

10. Qwest® OneFlex™ Hosted VoIPPackages Caller ID with name Call waiting with caller ID Call hold Call block Call transfer Call forwarding Smart call forwarding / personal locator Three-way calling Do not disturb Speed dial Repeat dialing Hunt groups Electronic facsimile service 24/7 customer support Service installation and activation (separate nonrecurring charge (NRC)) • OneFlex Office Package • Unlimited local and 8XX outbound calling • Unlimited on-net calling (any OneFlex Hosted VoIP user to another OneFlex • Hosted VoIP user) • 911 dialing1 • OneFlex Personal Online Dashboard with: • Call logs • Contact manager • Click-to-call • Click for voice mail • Voice mail with: • E-features • Indicator • One button push • Office administrator account profile • Distinctive ring • Abbreviated dialing 1Restrictions apply OneFlex Office Enhanced Package (includes OneFlex Office features) Microsoft® Outlook® integration Integrated messaging Remote calling

11. Premium features: not included in packages (priced separately) – only available for purchase with OneFlex Office or OneFlex Office Enhanced packages. Additional basic seat with: Unlimited on-net calling OneFlex Personal Online Dashboard 911 dialing1 Caller ID with name Distinctive ring Abbreviated dialing. Separate NRC applies to service installation and activation. Business white and yellow pages listing Microsoft® Outlook® integration Integrated messaging Personalized set up and training and on-site office administrator training2 Site survey and personalized local area network analysis Business customer premises equipment customized to the location Off-net calls (domestic local toll and long distance, and international) Directory assistance (411) 1Restrictions apply 2Included in OneFlex Office and Office Enhanced packages with greater than five seats per location Qwest® OneFlex™ Hosted VoIPPremium Features

12. Emergency calling / 911 • 911 service requirements: • You must have Qwest®-approved customer premises equipment (CPE). • You must have Qwest-approved IP connectivity. • 911 calls must originate from the service installation location. • If you do not meet these requirements you will not have access to 911 emergency service. • If you move your IP handset within the service installation location, the 911 service may need to be reconfigured. • Summary: Qwest will provide access to emergency 911 service at the service installation location if you meet the 911 service requirements shown above. If a stationary IP handset is moved, calls may not be routed to the appropriate public service answering point (PSAP).

13. Qwest® OneFlex™ Hosted VoIP Benefits • Converged solution • Converged voice and data service with dynamically allocated bandwidth. • Cost effective – you can: • Reduce telephony capital expense. • Lower move/add/change (MAC) costs. • Minimize ongoing operations and deployment costs. • Eliminate the need for separate voice and data networks. • Save on long-distance and on-net calls. • Increased productivity through applications integration: • Advanced IP-based applications. • Personal Dashboard for communications control. • Integration with Microsoft® Outlook®. • Scalable • IP telephony solutions change as business changes • Easy seasonal adaptation. • Mobility • Telecommuters and frequent travelers have same communications services on the road as in the office.

14. LAN hardware: Review of your local area network including hardware, software, voice services and features, network topology Full-duplex switched 100 Mb Ethernet LAN Category 5 or higher cabling Adequate bandwidth for both voice and data traffic Must not exceed one-way latency: IP phone to IP phone - 150 milliseconds IP phone to gateway - 120 milliseconds Must have low packet loss - less than 0.5 percent Must have low jitter - less than 20 milliseconds. Minimum number of IP addresses required LAN VoIP awareness: Network address translation (NAT) or port address translation (PAT), if present, must be VoIP/session initiation protocol (SIP) aware Firewalls must be VoIP aware. VoIP Requirements • LAN/WAN quality of service (QoS): • Understand QoS policy • Routers support Layer 3 type of service (ToS) /Diffserv • Layer 2 switches support class of service (CoS) tagging • WAN services support QoS (Optical, ATM, Frame Relay) • New IP handsets: • Use in-line power (802.3af) for IP handsetswith uninterruptible power supply (UPS) backup • Disperse analog phones throughout the enterprise for emergency dialing • LAN infrastructure configured with redundancy • Understand the migration path: • Create location-by-location migration strategy from TDM to VoIP (dialing rules) with minimal downtime • and customer impact

15. VoIP Architecture Internet VLAN 1 iQ Internet Port Plus Qwest® IP Network IP Handset Customer Ethernet Switch Customer Router Qwest Edge Router (Cisco® 10K) VLAN 2 Business VoIP Customer Computer Acme Packet Session Border Controller (SBC) Qwest VoIP Network Sylantro Feature Server Sonus PSTN Gateway (GSX) IP Unity Messaging Server TDM Long Distance Voice Network (CLASS 4) TDM Local Voice Network (CLASS 5) Black Phone

16. VoIP Feature Server 3 5 4a LD 4b Dedicated IP Access IP Network Local/LD 2 4c Local/911 VoIP Gateways PSTN VoIP Components 1 IP Phone • IP handsets • 2. Dedicated IP access • 3. Feature server (implements Class 5 and PBX features) • 4. VoIP gateways – three “flavors” 4a. VoIP gateways for outbound traffic to IXC network (then to ILECs via FG-D) 4b. VoIP gateways for inbound traffic from local and long-distance 4c. VoIP gateways for outbound local traffic (including 911 trunks) 5. Web-based interface for ordering, billing, configuration changes, control, etc.

17. VoIP to VoIP Call VoIP Feature Server Customer Premises “Call Setup” Path IP Network Router/ Switch VoIP Gateways NotInvolved Customer Premises “Call” Path (a.k.a ‘Media Path’) Router/ Switch

18. VoIP to PSTN Call VoIP Feature Server Customer Premises / Business VoIP Customer Local / LD Term IP Network PSTN 911 411 • PSTN call steps: • 1. VoIP signaling / voice traffic originates on the IP handset • 2. Signaling is directed to the VoIP feature server • 3. Signaling / voice traffic is redirected to the PSTN • Local • Long-distance • 911 • 411

19. Web Portal Management Hierarchy • Office Administrator Management Tools • Secure access to office/administrative portal provides real-time inventory of number of stations and features by telephone number/employee name • Full move, add, change, delete (MACD) capability • Monthly call detail report (CDR), by account, office, employee. Office Administrator (Web portal) CorporateHQ RegionalOffice#1 RegionalOffice#50 • User Portal • Outlook integration • Find me / follow me • Inbound, outbound and missed calls log • Click to dial • Call treatment groups • Address book End Users Temp Users Contractors Other End-User Web Portals (for office end users) Note: Office Administrators have equal access privileges

20. User Web Portal • Check voice mail Click on <individual voice mail message> • Check call log Click on <“My Calls” tab> • Configure My Assistant • Click on <“My Assistant”> • Configure My Settings Click on <“My Settings”> • Activate Reach Me features • Click inside <“Reach Me” box display>

21. Qwest® OneFlex™ Hosted VoIPSummary • Single “national” service provider solution • Cost effective – true voice, video and data convergence – can: • Reduce telephony capital expense • Lower MAC costs • Eliminate the need for separate voice and data networks • Save on long-distance and on-net calls • Increased productivity via applications integration, including: • Dial tone, voice messaging, instant messaging, PSTN access, e-mail integration, and personal dashboard for communications control • Inherent IP resiliency • Standards based • Scalable • Flexible • Extensible

22. All trademarks are the property of their respective companies. OneFlex Hosted VoIP is available to customers in select areas across the continental U.S., with new locations being added. Minimum one-year term commitment required. Early termination charges may apply. Monthly charge and activation fee based on configuration selected. Long-distance and local toll charges are additional. International charges are additional and vary. Listed rates do not include taxes, incremental charges and surcharges. Separately purchased equipment and Internet access compatible with the service are required. Call for availability and complete details.