Besides creating an audio file in the right format (Adaptive Multi-Rate), you also need to trick the iPhone to upload your new greeting to the AT&T servers:
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A new greeting can be recorded under the Greetings & Pin section of the app by first pressing the default greeting and then recording a new one.
Website: https://3cxhelp.telware.com/hc/en-us/articles/360046842274-How-To-Change-Your-Voicemail-Greeting-With-The-Android-Mobile-App
Configuration guides of tested IP phones, soft phones, door phones, audio alerter devices, and intercom devices.
6. Voxist: Visual voicemail you can read. Voxist presents your voicemail in the most accessible visual form. On one screen you will be able to get acquainted with all the messages and choose which ones you really need to listen to.
View your Access voicemail messages for information on how to better manage your voicemail. Check out Troubleshoot Voicemail for solutions to some of the most frequent voicemail issues.
Open the Google Voice app .At the top left, tap Menu Settings.In the Voicemail section, tap Voicemail greeting.Next to the greeting you want to use, tap More Set as active.
In the Voicemail section, tap Voicemail greeting. Tap Record a greeting. Tap Record . Record your greeting and when you’re done, tap Stop . Choose what you want to do with the recording: To listen to the recording, tap Play . To replace the recording, tap Redo. To save the recording, tap Save. Enter a name for the new greeting and tap Save.
You can also save your Visual Voicemail messages as notes or voice memos, or share them using Messages, Mail, or Airdrop. Published Date: April 30, 2021 Ask other users about this article Ask other users about this article See all questions on this article Support Set up Visual Voicemail on your iPhone
3. Tap the "Voicemail" button in the bottom-right corner of the screen to enter voicemail.
Tap on the Google Fi app on your device’s home screen. Tap on the Account tab. Under Phone settings, tap on Voicemail. Tap on Manage greeting. Tap on the Microphone button to record a new voicemail message, or skip ahead to step 8. Tap on Keep to save the new message, or on Redo to try another one.
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Change by aids of New voice mailbox greeting. Tips for verifying Voicemail on S10. Learn the information given below, find out the easiest ways of how to set up voicemail on a Samsung S10 phone, and verify msg. 1st way: check mail via visual voicemail soft. Choose incoming messages on S10; Go to the menu on the top of the screen
When an extension user is unavailable, the voicemail greeting consists of 3 audio clips: Unavailable Prompt + Voicemail Prompt + "Di".
6. Voxist: Visual voicemail you can read. Voxist presents your voicemail in the most accessible visual form. On one screen you will be able to get acquainted with all the messages and choose which ones you really need to listen to.
Website: https://toolbox.iskysoft.com/iphone-recovery/reset-voicemail-password-iphone.html