Just installed Ver 1.3.4 and have only had a chance to quickly go over the changes, I'll check out the phone function later today. The only thing so far, that I have a problem with is the "home" button at the bottom. While it is all well and good having a quick way to turn off the "I'm out of the office" setting, there is no quick way to turn that back on (that I've found). The button doesn't seem to toggle that setting and there is no indicator (that I've found) to inform you of what "mode" you are in. The way it is now, you have to go back into the settings/profile and check "I'm out of the office" each time you change locations. It's too easy to hit that button in error, have the phone stop registering , and have to figure out why (might be a network issue, might be the setting).
You need to either make the button toggle between settings, and reflect which one the phone is currently in (a big "R", for Roam, or a person walking?), or have an icon somewhere on the screen to let you know what the current setting is, then just mark that button as location (Loc.)
I like the addition of the prefix added to numbers in the directory. It obviously wont work with all PBX users dialling plans, being a single choice, but it is certainly is better than nothing and will be usable in a lot of cases.
When you first dial, the DTMF comes out the speaker (HTC Desire) even though it shows "earpiece" on the display. It does switch to the earpiece when the call is ringing but...the tones are a bit annoying and attract unwanted attention of those around you when it is quiet.
We just need the message waiting indicator now. Or is t there and I just haven't seen it yet?