Sony S15 auxiliary mini PCIe information, any working cards?

[drakonus]

I have a Sony SVS1511 and i wanted to know which PCIe cards fit their?

I bought a generic card and it doesn't work, but I know that the laptop can be speced with the WWAN card? Which model number is that?

What other cards work? is there anything that needs to be done to activate that port?

Thanks in advance!