What in the World is CSD? Why do I care?



Analog ---->to Digital-----> to Analog



Goodbye Analog Cellular Service in the USA, Sunset February 2008 Read more here


Worldwide, most systems were built with CSD included in their switch features. Some never activated it, some have turned it off to "make room" for other services. WORLDWIDE LIST


In the USA,  T-Mobile is also charging $10, but they supply a 2nd Phone number for the Fax line.


Simply put, at the moment, ATT and Cingular do not offer the type of service (Circuit Switched Data or CSD) for sending Fax over Cellular regardless of whether you plug a normal fax into a cell terminal, or a tiny stand alone fax. Only T Mobile and Verizon offer Fax capabilities from a single device.


To produce faxes over ATT, you would need 2 units, your own small fax or terminal with fax plugged in, which can handshake with each other, or a base office to units in the field. They can not talk to a regular fax in someone else's home or office, this feature is not supported by ATT-Cingular.


SPRINT & Verizon offer no CSD, so eFax is your only option.

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