Cisco says end of this year, others say 4-5 years. Over 250K VoIP ports shipped since July 1999, over 50K shipped in previous year. Cisco says it is on 2nd generation, others are on 1st generation. Applications include call managers, telephony application servers, directory servers, content servers. The infrastructure includes switches, routers, gateways, QoS, security, voice, video, multicast, VPN, load balancing, caching, address management.
Cisco is able to cover all levels.
The Cisco campus has 2500 IP phones today, they are going to 8000. Reliability Can do automatic rollover to PSTN when all IP capacity is in use. In new Catalysts will be able to run supervisor port on different IOS levels so can test, upgrade more easily. They have a new end to end system test lab to do better quality testing of inter-working on new code releases. The higher availability requirement for the voice network will enable the data network to have higher availability.