Motorola VT2142,VT2442,VT2542 Router/Voip

Motorola VT Broadband Router with 2 Phone Ports.
The CPU of the board uses TNETV10552. The tool to debug the CPU is EJTAG (NonDMA).

Picture showing the board
VT2442 has JTAG only on back of the board. The pins are mirrored. In the pic Pin 1 is top left.
Download firmware that allow you configure line
Picture showing VT2542 SIP settings

Flash 8MB 28F640
Firmware 8MB $90000000-$907FFFFF


Definition Commands (usbjtag NT 0.17 and up):



CYT.DLL is needed for the unlock.
Backup firmware
getram 90000000 800000
save 9fc00000 800000
Program the firmware
ldram boot (file backed up) program 90000000 800000

Step by Step unlock the locked VT2442. After unlock the admin log is Admin/ADmin
You can then use plane text xml file and use tftp to download to the router. This is for testing purpose and you need to check your agreement with your service provider
Step Description and command:
1Connect JTAG and read the whole flash
getram 90000000 800000
2Save backup
save 90000000 800000
3Unlock (ecample for VT2142)
erase cfg1
erase cfg2
program log
program boot
4 Reboo the router, login as Admin/Admin. Go to Advanced and select Voice provision. Enter tftp of your pc. eg. tftp:// Start tftp. In the tftp directory modify the following xml fil
Enter VOIP setting and rename to your mac. Someting like ti001122334455.xml.
Retboot the router and check the phone setting.

Lasted Updated:December 31 2016

Vists since Jan 4,2009