This is the 2A 106761000 107546392 106760812 battery for your AT&T Lucent MDC9000 MDW9000 MDW9010 Cordless Phone

The above batteries will have different model numbers on the product pages since they are after market replacement batteries which are as good or better than the originals.  The current or mAh (milliamp hour) rating of a battery is an indication of the battery capacity or how long it will last on a charge, the higher the better.