How to extend Digitmap timeout on multiple phones at the same time?

Good afternoon. I have seen the various articles on how to modify one's phones to increase the digitmap timeout by logging into each phone, going to Settings > SIP, modify the values under "Digitmap Timeout" to the desired time. That is an easy process if one has a few phones, however, if an organization has many phones, located in multiple geographic locations, surely there must be a way where those settings can be modified and pushed down to all the phones in an organization from within the Admin portal. I am surprised at why the process must be this overly complicated.