I did update the system completelly, including asterisk and all the modules!
When I reboot the system I get the V3 signatures problem:
[root@sme ~]# rpm -qa | grep zaptel
warning: only V3 signatures can be verified, skipping V4 signature
warning: only V3 signatures can be verified, skipping V4 signature
zaptel-kmdl-2.6.9-67.0.1.ELsmp-1.4.10-50.el4
warning: only V3 signatures can be verified, skipping V4 signature
warning: only V3 signatures can be verified, skipping V4 signature
zaptel-1.4.10-50.el4
warning: only V3 signatures can be verified, skipping V4 signature
warning: only V3 signatures can be verified, skipping V4 signature
uname -r
2.6.9-67.0.7.ELsmp