All,
Just a heads up for you. My company, Scannex, actually manufacture an inexpensive IP buffer device that can connect to the Inter-Tel 5000 and store the SMDR records. The unit can then deliver the records to central software via TCP/IP, FTP Push or even as an Email attachment.
As Woody mentioned the Inter-Tel requires a number of hex characters to "handshake". Our device has this option built into its firmware.
A single port device is $895 US list. Storage is 32Mb.
The unit can be seen at our web site. (Sorry cannot post our URL yet - Haven't made 15 posts.

)
ip.1-32
Hope this helps.
Terry Kelly