Rick Collins wrote in a message to Richard Town:
RT> V.FC is symmetric.  First to 28k8 too.  And found in the more expensive
RT> brand name modems.  First V34 from all brand names was symmetric
 RC> Symmetric - common Rx/Tx speed.  Asymmetric - differeing Rx/Tx
 RC> speed.  USR modems had asymmetric V.34 from day 1.  USR is a "brand
 RC> name". 
Heck, USR supported asymmetric v.32 connects.
Regards,
       David
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