You can also delete messages without having to dial into the normal voicemail system. Unfortunately, UK networks have been slow to adopt Visual Voicemail, and it currently just seems to be O2, EE and Orange that offer it to iPhone users. It’s not available from major networks such as 3 and T-Mobile (even though T-Mobile is now owned by EE).
Apr 27, 2013 · If the caller needs to a have longer conversation, then they should schedule a meeting or a coffee and have the conversation face to face. Or plan a conference call. Let the phone ring at least 6 times (or until the jump to voicemail occurs). This gives the receiver time to put down what they are doing and come to the phone.

Go to the Settings app, switch Airplane Mode to off, then switch it back on 30 seconds later. If that doesn’t work, go to Settings > General > Reset and select Reset Network Settings. You also might want to try powering down your iPhone and turning it back on. Select the Voicemail tab, then select Set Up Now. Note: Alternatively, you can set up voicemail by selecting the Phone app then pressing and holding the 1 key. If prompted, enter your voicemail password then follow the prompts to set up your voicemail. Go to Settings app → Tap on Cellular Data → make Turn Cellular data ON. If it’s already enabled, then make the turn-off and back on again and however, you have an issue regarding voicemail then try next way.
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.