Without the internet, movement coordinators and other Egyptians are silenced. 140-character messages are being supported by a Google-Twitter-system that allows some communication.
Other Egyptian voices have used dial-up modems to be heard.
The Speak-to-Tweet method involves using one of three international phone numbers to "microblog" news and opinions about the current Egyptian situation.
The international connections are in the U.S., Italy and Bahrain. These numbers can be reached to leave voicemail-type tweets.