Your PIN enables you to access your mailbox and calendar information through Outlook Voice Access . When you reset your PIN, a temporary PIN will be delivered to your email Inbox. Use the temporary PIN the next time you call Outlook Voice Access. You'll be prompted to create a permanent PIN at that time.
Follow the instructions and press that number. You will be asked to delete your current Voicemail greeting. Click on the ‘Yes’ button that appears on the screen if you want to remove that. You can save your new recorded Voicemail greeting or can use the default recorded option. From the home screen, select the Phone app. Note: Alternately, you can set up voicemail by selecting the Phone app then selecting and holding the 1 key. Select Keypad, then select the Visual Voicemail icon. Select Start. Select Ok. From any Home screen, tap the Menu key. Tap Settings. Tap Call settings. Tap Voicemail. Tap Voicemail again. View the voicemail number. Press and hold the 1 on your device’s dial pad to call and connect to your voicemail. Press the star * key to access the main menu. Press 4 to access the mailbox options. Press 7 to change the language of the voicemail prompts to either Spanish or English.

I know you’re thinking what does recording an iPhone call have to do with voicemail, but it turns out that a simple trick allows you to use the service to record any phone call, and it works great. Not only will you get the recorded phone call, but you’ll be able to save and share the call recording as an audio file as well.
Of the many things your phone can do, automatically recording a phone call is not one of them. Perhaps not including that feature is a security precaution for phone makers; it could be a potential liability issue. Regardless, from time to time, documenting a call is a useful thing to do, whether you’re conducting a phone interview or cataloging a customer service call.