[Asterisk-Users] Failed to read gains: Invalid argument

[Mimmus]

What are these error messages?

Mar 22 17:41:10 DEBUG[3592] chan_zap.c: Failed to read gains: Invalid
argument
Mar 22 17:41:10 DEBUG[3592] chan_zap.c: Failed to read gains: Invalid
argument
Mar 22 17:41:10 DEBUG[3592] chan_zap.c: Updated conferencing on 1, with 0
conference users
Mar 22 17:41:10 VERBOSE[3592] logger.c:     -- Registered channel 1, PRI
Signalling signalling
Mar 22 17:41:10 DEBUG[3592] chan_zap.c: Failed to read gains: Invalid
argument
Mar 22 17:41:10 DEBUG[3592] chan_zap.c: Failed to read gains: Invalid
argument
Mar 22 17:41:10 DEBUG[3592] chan_zap.c: Updated conferencing on 2, with 0
conference users
Mar 22 17:41:10 VERBOSE[3592] logger.c:     -- Registered channel 2, PRI
Signalling signalling
...
(for all channels)

I have a PRI E1 line configured with:
 txgain=0.0
 rxgain=0.0
in zapata.conf.

--
Mimmus