Hi
I've done a few migrations this way. Basically what you need to do is:
1) Compare the headers from each file and account for the differences between the two (renaming headers, and dropping out those that are deprecated)
2) Map any data differences (e.g. if partitiions, dev pools etc are named differently, replace them with the appropriate new values in a column-sensitive fashion).
I wrote some simple tools to do both those functions (compare two sets of headers and fix with some 'known' differences, and highlight other differences, and a second util to fix up data based on sets of rules - e.g. replace all instances of x with y in the Device Pool column, and all instances of INTL with INTERNATIONAL in any column, etc etc.). It takes a little effort up front to put the rules together (not too difficult) and then you sometimes hit odd bugs with the import/export process... but the result is that all the phones, assocs, services, and speed dials are migrated.
Personal Phone books are a seperate issue...
Aaron
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