The B179 SIP phone can initiate a firmware upgrade by acquiring avayab179_fw_version.xml from file manager.

When the firmware version specified in avayab179_fw_version.xml is different from its current firmware, the B179 SIP phone downloads the new firmware from file manager.

The B179 SIP phone starts the firmware upgrade process:

• During boot up

• Upon receiving a check-sync notification message from IP Office

  • Check-sync with no xml body

  • Check-sync with xml body: file_ID=TR_IMG

The structure of the Check- Sync .xml file is as follows:

<?xml version="1.0" encoding="ISO-8859-1"?>

<firmware_version>
   <version>2.2.7</version>
   <filename>AVAYA_B179_v2.2.7.kt</filename>
   <checksum></checksum>

</firmware_version>