My company using quite a number of EOL switches, such as, 2950 and 3550. Recently, there is a new company policy to restrict the remote access to use SSH only. From which IOS version onwards are supporting SSH v2? Which IOS bin file should I download...

This is using PIX firewall 525 with v6.3, and a Cisco router 3700. I'm thinking of work with my contractor for the implementation of Voip. I know nuts about Voip. But, according to my contractor, this voip is using sip. I also heard that 2 vlans - on...