What, You still have that problem??

I kind of thought it was solved by recreating the password storage files so that open mode keys are used instead of the aegis protected keys...
Why should VOIP behave differently from any other applications is beyound my understanding...

Did you try the method Jonni suggested, flashing device to closed mode and then immediately to open mode without letting it boot in between the flashing operations?
(something like "sudo flasher -f -F firmware.bin -F emmc.bin -R ; sudo flasher -a firmware.bin -k zImage_2.6.32.54-openmode_l2fix --flash-only=kernel -f -R" or so...)