[herrold@windon ~]$ for i in asterisk asterisk-addons libpri asterisk-sounds spandsp zaptel ; do rpm -qa --last | grep $i ; done
asterisk-sounds-1.2.1-5.rf                    Thu 19 Apr 2007 08:41:33 PM EDT
asterisk-addons-1.2.5-1fc6                    Thu 19 Apr 2007 08:10:53 PM EDT
asterisk-devel-1.2.17-2orc                    Thu 19 Apr 2007 07:58:12 PM EDT
asterisk-1.2.17-2orc                          Thu 19 Apr 2007 07:58:10 PM EDT
asterisk-addons-1.2.5-1fc6                    Thu 19 Apr 2007 08:10:53 PM EDT
libpri-devel-1.4.0-3                          Thu 19 Apr 2007 06:04:54 PM EDT
libpri-1.4.0-3                                Thu 19 Apr 2007 06:04:53 PM EDT
asterisk-sounds-1.2.1-5.rf                    Thu 19 Apr 2007 08:41:33 PM EDT
spandsp-devel-0.0.3-3                         Thu 19 Apr 2007 06:15:41 PM EDT
spandsp-0.0.3-3                               Thu 19 Apr 2007 06:15:36 PM EDT
kernel-module-zaptel-1.2.16-2orc_2.6.18_8.1.1.el5 Mon 23 Apr 2007 04:38:35 PM EDT
zaptel-1.2.16-2orc                            Mon 23 Apr 2007 04:38:34 PM EDT
[herrold@windon ~]$