Following is a list of modems about which I've had success reports with Silica. I've annotated, when possible, to indicate which caller ID protocol(s) have been confirmed. Unfortunately, there doesn't seem to be a really good way to know which protocol you're getting unless your phone provider's customer service can/will answer definitively.

Model Interface Modulation SKU Hardware
Version		 Firmware Driver Country Compatibility Initialization
Spring Serial V.90 UCJ 3.0F APPLE VERSION 0005, 11/11/1999 com.apple.driver.AppleSCCSerial (v1.3.0) 22 (United States, Canada, Guam, Hong Kong, India, Latin America, Philippines, Thailand) +VCID=1
MicroDash USB V.92 UCJ 1.0F APPLE VERSION 2.6.6 InternalUSBModem.kext (v2.6.6) B5 (United States, Latin America) CW w/ CID +VCID=1
Jump I2S V.92 1.0 MotorolaSM56K.kext (v1.3.2) B5 (United States, Latin America) CW w/ CID +VCID=1
Following is a list of modems I'm pretty sure don't work. When they differ only slightly from known-functional configs, I've highlighted the differences.
Jump I2S V.92 1.0 MotorolaSM56K.kext (v1.3.1) B5 (United States, Latin America) CW w/ CID +VCID=1

A user from Germany has documented his saga of getting Silica to work with his (known-working) modem and his phone provider at MacUpdate's product page here. In conclusion, he writes:

The standard German phone plug is TAE-F, which is has three vertical rows of prongs. The "western," or US, standard is RJ II, which is the typical square modem plug.

TAE-F 6 (4) [i.e. a 6-slot plug with 4 contact points] to WE 6 (4) (RJ II) [i.e. the typical "western" square modem plug with 4 tines]. The numbers on the left of the equals sign are the TAE-F contact points; those on the right are their RJ II correspondents.

1a = 3
2b = 4
3W = 2
4E = 5

He's kindly posted additional information and pictures here.

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Last Update: 2005-10-10