When you initiate the porting process with T-Mobile, it is important to understand that the transfer of your contacts and saved voicemails does not occur automatically. The porting process primarily involves transferring your phone number from your old carrier to T-Mobile. Your contacts, which are usually stored on your device or in a cloud service, will not be affected by the number transfer. However, it is advisable to ensure that your contacts are backed up on your device or through an online service, such as Google or iCloud, before beginning the porting process to avoid any potential loss of data.
As for saved voicemails, they are typically tied to your old carrier’s voicemail system. Therefore, these voicemails will not transfer to T-Mobile. If retaining your voicemails is essential, it would be wise to record them or find a method to save them before you port your number. For specific instructions on how to transfer your contacts or save your voicemails, you may want to check the current web page for additional guidance and tips.