The citric acid makes the sodium bicarbonate more soluble in water. Old chemistry trick, still used in a lot of detergents. Alka-Selter works because it contains aspirin imho. Citric acid is also used in cheesemaking.
About Visual Voicemail. Visual Voicemail is a free1 service that allows you to listen to your voicemail messages in any order you choose from an email-like inbox. You can easily play and delete messages, make callbacks, and manage voicemail features. Use your smartphone Ã¢ you canÃ¢t set up voicemail from another phone. Have a data plan with Visual Voicemail.1. Most AT&T Unlimited PlusSM, AT&T Unlimited ChoiceSM, and Mobile Share AdvantageSM or Mobile ShareÂ® smartphone plans include Visual Voicemail. Learn how to compare and change your plan.
One of the most convenient voicemail applications, visual voicemail lets you see who called and left a message, and then listen to the messages in whatever order you choose. To set up Visual Voicemail on your iPhone 6: 1  Go to your Home screen. 2  Tap the Phone icon.3  Tap the Voicemail icon. 4  Tap the Setup Now option. 5  Enter a password between 4 and 15 characters. 6  Tap Save. 7  You will be prompted to re-enter the password.ne of the most convenient voicemail applications, visual voicemail lets you see who called and left a message, and then listen to the messages in whatever order you choose. To set up Visual Voicemail on your iPhone 6: 1  Go to your Home screen. 2  Tap the Phone icon.