[Mar  6 23:43:19] ERROR[4534]: chan_zap.c:7890 mkintf: Unable to get span status: Inappropriate ioctl for device
[Mar  6 23:43:19] ERROR[4534]: chan_zap.c:12312 build_channels: Unable to register channel '4'
[Mar  6 23:43:19] ERROR[4534]: chan_vpb.cc:2887 ast_module_load_result load_module(): VPB Driver not configured