How to specify $provisioning_server as a fqdn instead of ip address for templates

General Help
1

I am using the OSS endpoint manager.

How can I get templates to use a domain name for $provisioning_server instead of an IP address?

2

I cannot seem to find where it is set:

/var/www/html $ grep -R "provisioning_server" *
    admin/modules/_ep_phone_modules/endpoint/aastra/aap9xxx6xxx/aastra.cfg:tftp server: {$provisioning_server}
    admin/modules/_ep_phone_modules/endpoint/aastra/aap9xxx6xxx/aastra.cfg:http server: {$provisioning_server}
    admin/modules/_ep_phone_modules/endpoint/aastra/aap91xxi/aastra.cfg:tftp server: {$provisioning_server}
    admin/modules/_ep_phone_modules/endpoint/aastra/aap91xxi/aastra.cfg:http server: {$provisioning_server}