Warnings after 1.2 --> 1.4 upgrade

Hi, I am gettting warnings in /var/log/asterisk/message after upgrading to 1.4 from 1.2 (source code install on Centos):

[Feb 12 14:36:49] WARNING[8477] translate.c: plc_samples 160 format 6
[Feb 12 14:36:50] WARNING[8477] translate.c: plc_samples 180 format 6
[Feb 12 14:36:50] WARNING[8477] translate.c: plc_samples 160 format 6
[Feb 12 14:36:50] WARNING[8477] translate.c: plc_samples 160 format 6
[Feb 12 14:36:50] WARNING[8477] translate.c: plc_samples 160 format 6
[Feb 12 14:36:50] WARNING[8477] translate.c: plc_samples 160 format 6
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show cache’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show channels’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show firmware’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show netstats’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show peers’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show registry’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show stats’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show threads’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] cli.c: Command ‘iax2 show users’ already registered (or something close enough)
[Feb 12 14:36:50] WARNING[8477] translate.c: plc_samples 160 format 6

Are the warnings from “translate.c” are nothing to worry about?

I’m perplexed about the iax commands getting registered twice. I grepped /usr/lib/asterisk/modules and only chan_iax2.so has ‘iax2 show’ in it. Any idea what may be causing this?