Working on an IPK 2 Software release 1.61. I have a DTI 40 ETU in slot 1 of the cabinet. Programming via a telephone as I do not have Web Pro or PC Pro for the IPK. Additionally the manual I have predates this release by a couple of years (Revision 1). The problem is that the programming that I do does not stick. For example in command 10-3-20 I select number 7(NI2) press the TRF key etc., but then go back in and look and all the PRI programming is at default. Do I need a PRT card or what???? One manual sort of says that it can be done on a DTI card... any help would be appreciated.