Here is tutorial setting your Blackberry® Curve™8310 / Curve™8320  as internet modem. Software modems and sound cards do have a lot in common, because software modem is basically just a sound card which outputs sounds into telephone line. It is possible that your modem is connected to your sound card and that it uses card to generate signals. I think it’s the same way in my laptop, but I’m not 100% sure. Still, that does not tell us if the modem is voice or not. It would be best if you could post the list of sound cards on your system. The driver of the models suitable for the use of BlackBerry users to download. Please download here :

Blackberry USB/Internet Modem Software. (Download Size:21 MB,English version)

If you have been download and installed on your PC you must setting on Windows XP and VISTA

  1. Select Start> Settings> Network Connections.
  2. Double-click the New Connection Wizard. New Connection Wizard will open.
  3. Click   ..Read More

You must set up your modem connection settings before you can use your Blackberry® Curve™8310 / Curve™8320 device as a modem.

  1. Connect your Curve™8310 / Curve™8320 device to your computer.
  2. Open the USB Modem BlackBerry® software or desktop software.
  3. Click IP Modem.
  4. Click …Read More.

Download Link : BlackBerry 8310/ 8320 Desktop Software v7.1 to connect Curve™8310/ 8320 with Computer Windows. This software are free to download and install on your Windows 7, Vista or XP. many feature that you can do any of the following optional steps:

To add the name of your email account on your Curve™8310/ 8320, type the name in the Service name field.

To include a signature in your outgoing email messages, type a signature in the Email signature field.

To save copies of the email messages from your Curve™8310/ 8320 to the Sent Mail folder in your IBM Lotus Notes email account, select the Save sent emails checkbox

  • Software Name: Desktop Software v7.1.0 B33 (Multilanguage)
  • File Name: 710_b033_multilanguage.exe
  • Download Size: 113 MB
  • Published Date: 08/10/2012

Here is QR code scan to download Yahoo Messenger for BlackBerry 8310 (Curve) 4.5 smartphones. Its will come pre-loaded with Yahoo!’s leading services, including: Yahoo! Mail, Yahoo! Messenger, Yahoo! Front Page, Yahoo! Search, Yahoo! Flickr, Yahoo! News, Yahoo! Finance, Yahoo! Contacts, Yahoo! Calendar, and Yahoo! Weather.
By combining their phones with our services, we’re offering people a personally relevant mobile Internet experience that makes it easy for them to stay connected to what’s important and explore the full potential of their phone.

This application allows you to chat in virtual real-time with your instant messaging IM contacts when and where you want to not just when you are in front of your computer. Yahoo! Messenger for BlackBerry 8310 (Curve) 4.5 Smartphones Take your Yahoo! conversations with you :

Open the BlackBerry App World app on your smartphone. Click the Menu key and select Scan a Barcode. Click Start Scanning. Point your Blackberry smartphone camera at the barcode image and hold the camera steady for 3 seconds to scan it. BlackBerry App World will instantly find the app you’ve selected. Download by scan the QR code

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Download Yahoo Messenger via BB Browser to download direct to phone : click here.

Download form PC : FREE YAHOO MESSENGER . Save it into PC and sent it to your BlackBerry 8310 (Curve) 4.5 via data cable