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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SCCP)
OL-3141-01
APPENDIX
E
Performing a Cross-Protocol Upgrade
This section describes how to perform an upgrade from the SCCP signaling image to either the MGCP,
SIP or H.323 signaling images.
You can configure the Cisco ATA to automatically download a new signaling image that the
Cisco CallManager administrator has stored on the TFTP server. You do this by configuring the
parameter upgradecode in your Cisco ATA configuration file. For more information about setting up the
configuration file, see the “Creating a Configuration File for a Specific Cisco ATA” section on
page 3-12.
Syntax of upgradecode Parameter
upgradecode:3,0x301,0x0400,0x0200,tftp_server_ip,69,image_id,image_file_name
Definitions
• The hexadecimal values that precede the tftp_server_ip variable must always be the values shown
in the syntax.
• tftp_server_ip is the TFTP server that contains the latest signaling image file.
• image_id is a unique 32-bit integer that differs with each upgrade. You can determine this 32-bit
integer value by using the build date on the image file name and prepending it with "0x". For
example, if the image_file_name is ata186-v2-14-020514a.kxz, then the build date is 020508a, and
the image_id is 0x020508a).
• image_file_name is the signaling upgrade-image file name. The image_file_name format is:
ata186-v{M}-{N}-{yymmdd}{a-f}{ext}
–
- M is the major version number
–
- N is the minor version number (always two digits)
–
- yymmdd is a two-digit year, two-digit month, and two-digit day
–
- a-f is the build letter (- yymmdd and a-f together form the build date of the image)
–
- ext must be ".kxz" for upgrading from version 2.11 and below, and can be ".zup" for
upgrading from version 2.12 and up for the Cisco ATA186, but it must be ".zup" for upgrading
the Cisco ATA188.
Process
Whenever the Cisco CallManager administrator stores a new signaling image (denoted by a change to
the image_id) on the TFTP server, the Cisco ATA updates its firmware with the new image_file_name.
To contact the TFTP server, the Cisco ATA uses the TFTP server IP address that is contained within the
value of the upgradecode parameter.