Cisco MGCP IP Phone Administrator's Manual page 45

Chapter 3 Configuring the Cisco MGCP IP Phone
The following is a sample RQNT message:
RQNT 9713 d001 @ 003094c25d40 MGCP 0.1
X: 100
S: X-check-sync
After the remote reboot process is initiated on the phone via the NOTIFY message, the following actions
take place:
1. If the phone is currently in an idle state, the phone waits 20 seconds and then contacts the TFTP
server for the syncinfo.xml file. If the phone is not in an idle state, the phone waits until it is in an
idle state for 20 seconds and then contacts the TFTP server for the syncinfo.xml file.
2. The phone reads the syncinfo.xml file and performs the following as appropriate:
a.
b.
c.
d.
e.
The phone contacts the TFTP server and requests its configuration files. The phone compares the image
defined in the file to the image that it has stored in Flash memory. If the phone determines that the image
defined in the file differs from the image in Flash memory, it downloads the image defined in the
configuration file (which is stored in the root directory on the TFTP server). Once the new image has
been downloaded, the phone programs that image into Flash memory and then reboots.
Determines whether the current image is specified. If so, the phone proceeds to Step
the phone proceeds to Step
Determines whether there is a wildcard entry (*) in the image version parameter. If so, the phone
proceeds to Step c. If not, the phone proceeds to Step
Determines if the synchronization value is different than what is stored on the phone. If so, the
phone proceeds to Step e.
The phone does nothing.
The phone reboots.
The phone the performs a normal reboot process, sees the new image, and upgrades to the new
image with a synchronization value of what is specified in the syncinfo.xml file.
Cisco MGCP IP Phone Administrator Guide, Release 5.0 and Release 5.1
Performing an Image Upgrade and Remote Reboot
b.
If not, the phone proceeds to Step
d.
d.
c. If not,
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