Use this document to troubleshoot Voicemail problems on Android devices.
Choose a scenario:
If you receive a call from your own mobile number, the paging notification option of the voicemail system is most likely turned on. The paging notification will call the number stored when a new voicemail is left.
Voicemail timestamp notifications (Message Waiting Indicators) are based on the location of your mobile number. For example, if your mobile number is for the state of Pennsylvania, your Voicemail MWIs will display in EST, even if you are in a different time zone.
129 is the T-Mobile identifier for the voicemail paging option. When a caller selects the option to leave you a numeric page, the device receives a text message from sender '129' containing the phone number of the caller.
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