These packages has included all driver modules for OpenVox cards, they are fit for the cards with new firmwares which mentioned below:

http://downloads.openvox.cn/pub/drivers/dahdi-linux-complete/You%20must%20read%20this%20bofore%20downloading%20drivers.txt

you can download the package for specific version of elastix, then replace the original ones and reboot the system to bring them to effect.

BTW, the wctdm.ko is applied the cid patch, if you have cid issue, you can replace the patched wctdm.ko to debug the cid.

Enjoy!