VM only accessible on one line

Hello, @user_f49be7 when it comes to Comcast Business Voicemail 

1. Dial your office telephone number or press *99 from your extension.
2. When your personal greeting starts, press #.
3. Enter your password when prompted.
4. Press 1 to review your new messages. 

For Business VoiceEdge:

1. Dial your voicemail portal number.
2. Dial your extension.
3. Enter your voicemail PIN and press #.
4. Press 1 to go to your voicemail box.
5. Press 1, again, to listen your voicemail box. As you listen to your new messages, you have the following options:
   • Press 2 to repeat the message.
   • Press 7 to delete the message.
   • Press # to save the message.

What happens when you attempt to access the voicemail from the second line?