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.
Besides the upfornt cost of the iPhone 4, youâll need to sign a two-year agreement with AT&T and consider the following: 1  AT&T Voice Plan: AT&Tâs voice plans start at $39.99 for 450 anytime minutes and range up to $119.99 per month for unlimited family plans with two lines of service.reakdown of iPhone 4 Costs. There are a lot of costs involved in picking up the new iPhone 4. New AT&T subscribers and qualifying AT&T customers will be able to buy the iPhone 4 fort $199 (16GB) or $299 (32GB), which is in line with the original pricing of the iPhone 3GS.