E1 PRI Issue on VitalPBX-3

I installed Digium 131 card on Vitalpbx-3

and i change E1 mode

options wcte13xp default_linemode=e1  /etc/modprobe.d/dahdi.conf:

https://support.digium.com/s/article/How-to-Install-and-Configure-a-Digium-TE13x-Single-Span-T1-E1-Card

but i can not set E1 mode. VitalPBX3 set only T1 mode

i think VitalPBX2 is can change e1 mode

who knows something secret ?

thansk for help