The mobile must originate a data call using Service Option 33 (high-speed packet data, IP), and the E5515C must terminate it appropriately. The usual failures at this stage are as follows:
Service Option set to a value other than 33 or 33+F-SCH, or radio configurations set to below 3. Set the Radio Config to (Fwd3,Rvs3) or higher and then set the appropriate FCH Service Option to SO33.
If the cdma2000 call works without forward supplemental channels (F-SCH) but not with, check the forward supplemental channel power setting. It defaults to an incorrect values. See Figure 4-5 for some settings that work for a normal call. Use the button to adjust the power levels.