Install OpenVox GSM card- G400P on AsteriskNOW13

I installed OpenVOX GSM card - G400P on AsteriskNOW 13 server
Kernel 2.6.32-431.el6.x86_64
PBX Firmware: 5.211.65-21
Asterisk 13.6.0
I followed the tutorial and run the Extra_chan script,
I added the dahdi and asterisk directories in /usr/src
The build of dahdi complete successfully
but building Asterisk fail with error:
make[1]: *** [chan_extra.o] Error 1
make: *** [channels] Error 2
Installing Asterisk: make … [ Failure ]

and if I skipped rebuild of Asterisk, I can not find gsm commands in Asterisk.

I need help to complete the OpenVOX G400P card installation.