Verizon customization cab.. What does it do...

[zambezy]

I used 3.37 radio and OMJ 6.1 clean flash... I never installed the verizon cab... I have almost everything working exept the EPST..... I dont have the diag codes working like ##3234 and ##778 ....
The modem functionality is not working.
If I install this cab would it dissable the BT PAN or Internet Sharing or the Comm Manager functions. I dont know how much this cab realy does. If it doesnt i will install it but I dont want to loose all that.