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Cingular Discontinuing CSD

R

Robert Bass

Greetings all,

I saw the following notice on the Comrex website:

The optional Matrix GSM Module uses GSM CSD (circuit switched data) to deliver 7 kHz frequency response over wireless service . It operates where GSM circuit switched data is available . Many carriers around the world offer CSD. In the US, T-Mobile and Cingular were offering this service, however recently they have been discontinuing the Circuit Switched Data service without warning. It has become increasingly difficult to reliably obtain CSD service or to be able to rely on this service for broadcasts and Comrex can no longer recommend this service in the US.
Click to expand...

So if a GSM Codec you are trying to use displays NO CARRIER, does that mean CSD has been discontinued?

R
 
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