iPhone 4 suddenly dropping calls | iPhone and iPad Forums at everythingiCafe

there are some troubleshooting steps:

1. Settings > General > Reset > Reset Networks Settings
2. Call AT&T or go into a Corporate AT&T Store and ask for a replacement SIM. Make sure you specify that it's a micro SIM.
3. If neither of those work, you could try a restore to factory settings.

Europa, May 30, 2012

#2

http://www.everythingicafe.com/forum/threads/iphone-4-suddenly-dropping-calls.89298/

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