Asterisk Manager Interface (AMI) With DAHDI system.conf

I am trying to edit system.conf via AMI UpdateConfig command. But since /etc/dahdi/system.conf does not have standard configuration file format as others (eg. extens.conf, chan_dahdi.conf), AMI always throws back this error to me. Any idea how it can be resolved, or am I trying something which is not supported.

Yeah, not supported. Asterisk never reads or processes the files in /etc/dahdi itself, so shouldn’t need to have any knowledge of those files.