I'm using Elastix 1.5.2-2 My Rhino card is detected as T1 (only 24 channels displayed) under Hardware Detection tab. I read on Rhino's knowledgebase that I only have to modify modprobe's option "e1=1" for the card to be treated as E1 card. See: https://support.rhinoequipment.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=20 for details. As per their instructions, I modified /etc/modprobe.d/modprobe.rhino where it says that option from: options r1t1 e1=0 ec_disable=0 debug=0 to: options r1t1 e1=1 ec_disable=0 debug=0 I reboot the system for changes to take effect when running init scripts, but I get a Kernel Panic message. What I'm doing wrong? Please help me... Thanks!