Symptoms
Symptom corrected by version 2.28.032.0066

(New) Initial release for ThinkPad A20m/A20p, T20

Symptom corrected by version 3.28.032.0066b

(New) Support for ThinkPad X20.

Symptoms corrected by version 3.28.032.0066c

• (New) Support for ThinkPad A21m, A21p, A21e, and T21.
  
• (Fix) Fix for Singapore connection issue.

Symptom corrected by version 3.28.032.0066d

(New) Support for ThinkPad TransNote.
This is a Readme update only, no version change.

Symptom corrected by version 3.28.032.0066e

(New) Support for ThinkPad A22m, A22p, T22, and X21.

Symptoms corrected by version 3.28.032.0067

• (Fix) Fix for modem staying off-hook on an abnormal shutdown.
  
• (Fix) Fix for DSP upload error.

Symptom corrected by version 3.28.036.0076

(Fix) Fix for Singapore RAS connection issue.

Symptom corrected by version 3.28.038.0076

(New) Support for ThinkPad A22e.

Symptoms corrected by version 3.28.039.0076

• (New) Support for ThinkPad T23.
  
• (Fix) Fix for humming noise issue.
  
• (Fix) Fix for ThinkPad Access Connections issue.

Symptom corrected by version 3.28.039.0076b

(New) Support for ThinkPad X22, A30, and A30p.

Symptom corrected by version 3.28.039.0076.01

• (New) Support for ThinkPad Software Installer.
• (Fix) Fix for modem negotiation issue with Intel Mini PCI modem.

Symptom corrected by version 3.28.039.0076.01b

(Fix) Fix for low modem connect speeds.

Affected configurations
Any of the following ThinkPad systems:

• ThinkPad A20m, A20p
  
• ThinkPad A21e, A21m, A21p
  
• ThinkPad A22e, A22m, A22p
• ThinkPad A30, A30p
  
• ThinkPad T20, T21, T22, T23
  
• ThinkPad X20, X21, X22
  
• ThinkPad TransNote

Solution
Download the latest modem driver update.