Voicemail service. On the Droid 2, this simply reads “My carrier,” which is Verizon. You can’t change it, so don’t bother tapping.
Voicemail settings. This lets you change the number you dial to call voicemail. It’s *86, but if you want to change it, tap “Voicemail settings”→Voicemail, type the number you want use, and then tap OK.
Assisted dialing. When you’re overseas, if you want to get to an operator to help you make your call, tap this and then turn on the checkbox next to “Assisted dialing status” in the screen that appears. On that screen, you also select your home country, and the country from which you’re calling.
Auto answer. If you want the Droid 2 to automatically answer calls when you’re in hands-free mode using a Bluetooth headset, turn on this box.
Caller ID Readout. Normally, when someone calls you, you see the phone number and person calling on the Droid 2, and your phone rings. If you’d prefer that the Droid 2 first speak the name of the phone number or person, you can set that option here by tapping “Caller ID then Ring”. If you want to dispense with the ring entirely, select Caller ID Repeat. From now on, the Droid 2 will repeat the name or number of the caller instead of using a ring.
Auto Retry. Sometimes you make a call, and it simply won’t connect. If you want the Droid 2 to redial the number automatically after that happens, turn on the checkbox next to this option.
TTY mode. Turn on this box to turn on Teletype mode, which lets the Droid 2 communicate with a teletypewriter, a machine that lets deaf people make phone calls by reading and typing text.
DTMF Tones. DTMF tones are the sounds a touchtone phone makes when dialing, and they’re also the tones used to access voicemail, to navigate through a phone tree (“Press 1 to be put on hold forever”), and to perform other kinds of automated services via your phone. Tap this option if you want to lengthen those tones (for example, if you have problems accessing these kinds of services).
HAC Mode Settings. HAC is short for hearing aid compatible. Turn this option on if you use your Droid 2 with a hearing aid device.
Voice Privacy. Encrypts your voice conversation as it’s transferred over the wireless network. It’s automatically turned on, so you shouldn’t need to turn it on unless it’s accidentally been turned off. (There’s no benefit to turning it off.)
Show dialpad. Sometimes you need to use the dialpad during a call—for example, to navigate a customer service phone tree (“Press 2 to be ignored”). You can have the Droid 2 automatically display the dialpad during certain types of calls, for example, when you call toll-free numbers, 900 numbers, voicemail, and so on. Tap “Show dialpad”, and you come to a screen that lets you tell the Droid 2 on which types of calls you want the dialpad to appear. You can even tell it to always display a dialpad when you call certain numbers.
