How to fix the yum repos file for sipXecs 4.0.4

Edit the /etc/yum.repos.d/sipxecs.repo

nano -w /etc/yum.repos.d/sipxecs.repo

on all the lines that begin with mirrorlist and baseurl change the 5.2 to be just 5.

Here's the resulting sipxecs.repo file.

[centos-5.2-base]
name=CentOS-5.2 - Base
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=os
#baseurl=http://mirror.centos.org/centos/5/os/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#released updates
[centos-5.2-updates]
name=CentOS-5.2 - Updates
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=updates
#baseurl=http://mirror.centos.org/centos/5/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[centos-5.2-addons]
name=CentOS-5.2 - Addons
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=addons
#baseurl=http://mirror.centos.org/centos/5/addons/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[centos-5.2-extras]
name=CentOS-5.2 - Extras
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=extras
#baseurl=http://mirror.centos.org/centos/5/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centos-5.2-centosplus]
name=CentOS-5.2 - Plus
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=centosplus
#baseurl=http://mirror.centos.org/centos/5/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

[sipxecs-stable]
name=SIPfoundry sipXecs pbx - latest stable version
baseurl=http://sipxecs.sipfoundry.org/pub/sipXecs/LatestStable/CentOS/5/$basearch/RPM
gpgcheck=0