Installed ver 4.3rc1 today, I'm yet to try that but already a little feedback.
When assigning speed dial phone numbers via SW-manager, the phone number fields are limited to numbers only, should allow also + sign 'cause otherwise international calling would be cumbersome. Say, if I'm abroad I cannot call anyone. I did not try if format '00<Country code><phone number>' would work, but if it did, should be mentioned in the user instructions.
Secondly, I'm not certain if it is possible but why not use phone speed-dials here instead of full numbers.
In other word by selecting speed dial #6 from SMH10 the phone would call to whatever number is stored onto it's speed-dial position #6