List who maintains the inventory, reviews alerts, checks configuration backups, schedules updates, and follows up recurring faults. Under an incident-based arrangement, decide which of these tasks your team retains or purchases separately. For a managed proposal, require the included recurring tasks to be named. The service label alone does not prove that preventive or monitoring work is being performed.
Compare escalation rather than slogans
Map the contact path for network, voice, access, and other covered systems, including issues that cross vendor boundaries. Ask both providers to define support hours, triage, onsite dispatch, exclusions, and responsibilities when an external carrier or manufacturer is involved. Keep response and restoration targets distinct, and decide who coordinates the incident when several systems appear to be affected.
Use a common lifecycle budget
Compare incident labor and retained staff work with recurring fees, onboarding, out-of-scope projects, licenses, and replacement costs over the same period. Use your own service history and stated assumptions; do not treat a generic downtime estimate as a guaranteed saving. Break/fix may fit a team that owns the ongoing tasks, while managed service should specify which of those obligations it actually takes over.