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Home >> Chevrolet >> 2008 >> HHR SS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Cellular Systems, Entertainment Systems & Navigation Systems) >> Description and Operation >> OnStar Description and Operation >> Mobile Identification Number and Mobile Directory Number
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Mobile Identification Number and Mobile Directory Number

WARNING: This page is about a different car, the 2010 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.

The telematics communication interface module utilizes 2 numbers for cellular device identification, call routing and connection, a mobile identification number and a mobile directory number. The mobile identification number represents the number used by the cellular carrier for call routing purposes while the mobile directory number represents the number dialed to reach the cellular device.

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