Both versions (Verizon and Sprint) support the CDMA digital network and Bluetooth version 1.2 which allows for multiple connections at once.
The feature list for the 700p is incredible and more than I could cover in a 20 page review. There is so much potential it's ridiculous. Let's cover the basics that Palm lists. The speakerphone is a nice touch; I use it when listening to voicemail or any automated phone call where I don't want to hold the phone to my ear and have to press numbers to make my way through menus. In-call speakerphone usage is so-so. I find people sometimes have a hard time hearing me while using speakerphone.
The proprietary headphone jack is a bit of a letdown. It is a bit smaller than a normal headphone jack, which forces you to buy an adapter if you want to use your own headphones. The good news is that the Treo comes with its own headphones/mic to use for a handsfree setup. It works pretty well for headphones as far as I'm concerned. The mic isn't bad either and I haven't had many complaints from people on the other end of my calls.
The Treo 700p offers TTY/TDD compatibility, which means that people who are hard of hearing or deaf can still use this device to communicate through text messaging. This phone does a great job when doing text messages. It works almost like a forum or IM chat window. It keeps up with the previous text messages that have been sent back and forth. No longer are you required to go back and read individual messages one at a time.
Among other things, the phone has a nice memo book to store all of your important information. I use mine frequently at work to keep up with How-To's on server information as well as all passwords and other login information. It's a great way to keep track of things where I would otherwise have to keep a pen and notepad handy.
The calender let's you enter in events by time and date, which is becoming more commonplace in today's cell phones. The calendar features an alert to let you know when a task is coming up. It could also be used to keep track of where/when you completed a certain task.
One third party program I wanted to mention is an instant messaging program called Toccer. It has the same look and feel of AIM that would be on your desktop. It even keeps a log of previous IMs after you sign off or close an IM, much like the text messaging feature mentioned above.
Pocket Tunes is the media player that comes pre-installed on the Treo. This program can play MP3s stored on the Treo or an expansion card. Playlists can be easily created and the music can be played in the background while you do other tasks. Yes, it will stop playing when you receive a phone call. Volume can easily be adjusted via the volume buttons on the side of the phone or in the Pocket Tunes software. Pocket Tunes works well enough, but I prefer the media player TCPMP as it offers a few more options and increased stability (no skipping music) but you are unable to use it in the background like Pocket Tunes.
The included e-mail program, VersaMail, can be set to use all sorts of different mail clients. It can do exchange, AOL, MSN, Comcast, Juno, Hotmail and Gmail, just to name a few. Not in the list? Simply choose other and select the protocol: POP, IMAP, or exchange ActiveSync.