Cisco VoIP migration & deployment

Cisco VoIP migration & deploymentPresented by: Arshdeep S. AroraNetwork Refresh Objective:The University of Maryland, College Park has embarked on a five-year project to upgrade and refresh the campus network. At the beginning of the project, 70 percent of the network equipment was categorized as obsolete and about 80 percent of campus buildings were cabled with wiring that did not support modern network speeds. The outdated equipment also did not support Voice over Internet Protocol (VoIP) technology, and, more importantly, new services mandated by state auditors required upgrade to new equipment to enhance the security of the university's network and critical applications. Included in the security aspects of the project are wired network authentication, firewall service for university departments, intrusion prevention, and potentially, installation of equipment mandated by the Communications Assistance for Law Enforcement Act

Unified CommunicationsA solution that bring together voice, messaging, video, and desktop applications to enable organizations to quickly adapt to market changes, increase productivity, improve competitive advantage and deliver a rich-media experience across any workspace.KEY Components:Communication: Voice, data, and video.Messaging: Voice, email, video, and Instant messaging.Conferencing: Online, audio, and video.Presence: IP phone, desktop clients, and call connectorsCommon user experience: Desktop, phone, and mobilityEmergency Responder.Contact center.

ConnectCollaborateCisco UC Components:Cisco Unified Computing Servers UCS. Cisco Unified Communication Manager.Cisco Unity Connection. Cisco Unified IM & Presence.Cisco Unified Contact Center Express.Cisco Emergency Responder.Cisco 3925 Integrated Services Routers.Cisco Expressways(Edge and core servers).VG 350 and VG 224 Analog voice gateways.

Network Readiness:Use QoS in LAN, MAN, and WANNo shared media LANsSwitched LANs onlyEnd-to-end QoS/Call Admission Control requiredBandwidth requirementsCalculated total requirements, use Call Admission Control.Network availabilityNetwork design, redundancy and best practicesNetwork-based authentication and securityPower for endpoint devicesPower budget in wiring closet, prepare for Power over EthernetPlan for E911 support with automated location management

Process of Migration:

Cisco UC

Site-ASite-BNetwork LayerLegacy PBXNetwork Architecture:Product Requirement:Avaya end-of-life situation has resulted the university to consider alternative solutions.University need low-risk, evolutionary solutions.Solution must work with existing Avaya systems.Integration with other tools and processes (directories, e-mail, mobile devices etc.) is also required.Reliability High Up time, High availability infrastructure.Emergency responder system. Reliable web classroom environment.Quality of Service High grade of service.Better call coverage paths , efficient call routing , Single number reach , Mobile voice access.

Product Requirement(contd.):ScalabilityMust be able to support more than 15000 end points(campus requirement).Future Remote site deployment.Integration with SIP provider(3-4 years down the line).Federation deployment.SecurityEvery packet should be encrypted and can not be compromised.Secure RTP (SRTP) support.Integration of IPSEC with Unified Communication(SIP security profile).

Migration Issues:It is a step by step process. As operations can not be disturbed.It requires planning and coordination across the organization.Migration should minimize short term and long term impact to users.You build stuff and you break stuff.Site roll over/cut over process.End user acceptance and education.Training the help desk with the new procedures.Training the existing technical staff with new technology.Budget constraints.Value proposition.RED SKY E911 V/S Cisco Emergency responder.

Technical challenges:Server version(10.5.2).Phone firmware issues and bugs.Certificate issues and bugs.Cisco to Avaya sip integration bugs.Dial-plan roll over.IM client(jabber) issues.Red sky E911 JTAPI integration.Single sign on issues(Unity and Shibboleth).Directory issues and bugs.Tomcat certificate size issue.Hardware issues and RMAsCaller ID issues.Single number reach issues.

Thank You