This is the clue here. The DAHDI kernel modules aren't being loaded, so the /dev/dahdi device isn't available. Make sure the modules are loaded in and then restart Asterisk...............[Jul 15 22:20:03] WARNING[25155]: chan_iax2.c:12750 load_module: Unable to open IAX timing interface: No such file or directory
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Asterisk Ready.
*CLI> [Jul 15 22:20:04] NOTICE[25161]: app_rpt.c:22184 rpt_master: Normal Repeater Init 48455
[Jul 15 22:20:04] WARNING[25176]: chan_dahdi.c:928 dahdi_open: Unable to open '/dev/dahdi/pseudo': No such file or directory
[Jul 15 22:20:04] ERROR[25176]: chan_dahdi.c:7906 chandup: Unable to dup channel: No such file or directory
rpt:Sorry unable to obtain Rx channel