Toshiba DADM3020 Add-on Module Check Scanner The Extreme Networks 4050-00010 is

The Extreme Networks 4050-00010 is an SX Mini GBIC SFP transceiver with a wavelength of 850nm

If you have an HD model or your phone is listed below than this is the correct handset

Mitel 5340e IP Phone Description:

Dell Networking N15xxP Series

Ring Tones

Toshiba DADM3020 Add-on Module Check Scanner The Extreme Networks 4050-00010 isToshiba DADM3020 Add on Module Description: The Toshiba DADM3020 is a DSS expansion console that adds an additional twenty buttons to your 3000 series Toshiba phone. The DADM3020 is the perfect solution for secretaries or those workers who require many programmable buttons on their phone. You can add up to two DADM3020 expansion modules to your phone, totaling forty additional buttons you otherwise wouldn't have. The Toshiba DADM3020 comes fully