how to change the delay for speakerphone button on tmobile?

[jmallen]

Does any know how to change the time that you have to hold the phone button down to turn on speakerphone on a t-mobile ppc xda1 with wm2003?

[ezzkht]

I've searched through all the registry, entry by entry,, I didn't find anything regarding to this option! I guess the delay value is hardcoded inside the phone application binaries :?

Using car kit will help :
http://pdaphonehome.com/forums/showthread/t-5996.html