Extension users can dial voicemail feature code (default *2) on their phones to access their voicemails. To enhance the extension security, you can change the voicemail PIN on PBX web interface.
Make sure to keep the microphone in an appropriate angle and distance while recording. When finished, tap “Stop” and finally “Save”.

By following this walkthrough, you’ll have your voicemail set up in no time. All you’ll need is your iPhone and a few spare minutes. Begin by tapping the Phone icon that is located on the home screen. Next, you’re going to touch the Voicemail tab that is located at the bottom right of your iPhone screen.
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. Start the Google Voice app. Tap the three horizontal lines at the top left of the screen (sometimes called a hamburger menu), and then tap “Settings.” In the Voicemail section, tap “Voicemail greeting.” Tap “Record a greeting.” How do I access my voicemail? 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 check your voicemail?