According to an article over on wmexperts, the CDMA Development Group has now announced their “CDMA2000 1x Advanced Specifications” and look to be quite a significant upgrade to EV-DO networks like Verizon and Sprint in the US.

One significant advance is that it allows networks to increase voice capacity by taking advantage of numerous interference cancellation and radio link enhancements. Other improvements include improved power control, base transceiver station interference cancellation, smart blanking and early frame termination. (Yeah I know, bamboozled me too)

However, most impressive for customers is probably the creation of SVDO, which is instant 1X Voice and EV-Do data which Ev-Do can’t do at the moment unlike GSM.