Sync certain LDAP Fields both ways?

So we have an issue with our sysaid helpdesk LDAP integration. We use sysaid's password reset portal service with it's native text provider and it works great. The only problem is our LDAP connection overwrites the number a end user puts in themselves in the self service portal with the number in AD, so I was wondering if we could have a LDAP connection made to sync data both ways. Essentially my current idea is to have a second similar LDAP config that only syncs phone numbers both ways. Is this possible? Also, is there a better way? Any help would be appreciated.

Thanks,
Kyler C.