I'd like to have a better interface to place calls from phonebook. this interface should show the phonebook, allow for some quick search in it, and allow for a call to be placed to a number in the phonebook by clicking on it or on a button near to it.
This, in my opinion, is far more "friendly" than the current method, expecially for the casual user (that is, not the pbx operator).
Also, it should be taken into account that when dialing a phonebook number it is usually needed to add a "9" or a "0" (or any other prefix) to get to the external line, so I have to save every number in the phonebook with the prefix already prepended. It could be nice to have some configuration parameter that contains the prefix to make external calls. Or you can leave it empty to make it work like it works now.