If you have the person's email address, follow up with an email. Depending on the person’s schedule, it may be easier to correspond (or schedule a time to talk) via email. If you are going to go this route, say in your voicemail that you will be sending over an email shortly.
When you hear the Dial Tone, call into your landline or office voicemail box. The rule of thumb is when you hear the Voicemails Forever dial tone, then follow your phone's instructions to listen to your voicemails remotely. This will vary from carrier to carrier and phone to phone. You may need to call your phone networks customer support for updated instructions.

Android phones can access voicemail by holding down the 1 key on the dial pad until the phone dials your 10-digit phone number. You will automatically connect to your mailbox and be prompted to enter your temporary password; this password is the last 4 digits of your phone number followed by the # key. How do I check my voice mail? To call your voicemail on an Android phone, simply open your phone’s dial pad and hold your finger down on the “1” key. You can also call your voicemail from a different phone by calling your own number and tapping the pound key. How do you listen to voicemail on this phone? Turn on your phone and open the Phone app. Call your voicemail system. Enter your voicemail system passcode. Tap the key that allows you to check messages. Listen to each message and tap the corresponding key to replay it, delete it, or save it. How do I get my voice messages from this phone?
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