It turns out that Motorola decided to confound the unwashed by renaming a few of the standard GSM commands. Fortunately, the changes are very minor. The standard "CPxx" commands on this phone are "MPxx" instead. A few extra parameters are used as well, so maybe they wanted to avoid conflicts with other phone software. (The V60c is not a GSM phone, but it probably shares the same AT command set with all the other V60 models.)
Update: I don't want to imply that Motorola is being ornery about the phone command set: The true GSM phones made by Motorola support both the standard GSM commands and the enhanced Motorola commands. My programs use the enhanced versions of the commands because I want to maintain some of the extra phonebook entry features such at the entry type: (Home, Work, Email, Mobile, Fax, etc.)
The results presented here are far from complete, but they are enough to support simple phonebook applications.
When using a serial cable, 19200 baud is the proper speed setting for all the phones I've tried.
Note: Some serial-cable phones seem to learn the baud rate from the first character sent and then get locked into that speed. You may have to cycle the power on the phone when trying different speed settings.
When using a USB cable, you can explore higher speeds. Try the standard modem speed steps: 19200, 28800, 38400, 57600, 115200, etc.
All of the Bluetooth phones seem to like 115200. Dispite the higher baud rate, the rate at which the phones can read and write phonebook entries feels very slow to me. Writing phonebook entries to the phone is extremely slow on the V551 and V3 RAZR.
As we will see, the phone has several data storage areas organized as phonebooks. The main phonebook holds all the phone numbers and email addresses.
A phonebook is organized as a simple array of entries. Each entry has fields for a person's name, a value string, and a type code. The type code tells us what sort of thing is in the value string. There are seven possible values for the type code, indicating various kinds of phone number or an email address. If the same person has several phone numbers, there will be one entry for each with a distinct type code. All the entries would have the same name.
When an entry is deleted from a phonebook, the fields are simply set to empty strings. When a new entry is added, the phone locates the first empty entry to hold the values. The index of that entry becomes the speed dial number.
If you figure out more commands for this phone, I'd appreciate hearing from you: