I just found a way to do this. It uses
Rhodium Keyboard Controller.
http://forum.ppcgeeks.com/showpost.p...9&postcount=35
I have not tried this yet, but looks like it might work.
My sugestion would be to remap the vol up and down to the up / down keys for everything. Then add a rule for each of the keys you remapped for just the phone appp, mapping it to the original key....
Basically create a new key mapping for the volume up key
Set key mode to "Direct key mapping"
Set "key code" to "40 Down"
Check the "Repeat key press each (ms)" option and leave it at 100
Next you need to create a rule so this key will do something different whilst in the phone app. You want it to actually be the volume up key...
Whilst in the same key mapping, click the plus (+) next to the Rule
A box will appear telling you to pull out the stylus and switch to the desired app, then put the stylus in. So basically make sure the stylus is in before you click on the +, then tap the + with your finger, when the box appears telling you to pull out the stylus, do so, then switch to the phone app, then put the stylus back in its' hole. Once you've done that you should see "Rule 2" in the Rule box.
Change the key mode to "Direct key mapping"
Change the key code to "117 F6 - VOL UP, DONE"
Check the "Repeat key press each (ms)" option and leave it at 100
Click on OK
Now repeat all of this for the vol down / down key selecting the appropriate down or vol down actions.
Once you've created both keys make sure you enable them by tapping the "Update Config" soft button.
Hope this helps.