Guide

How to Bulk Update Directory Numbers in CUCM

Changing DN settings across a lot of phones usually means a BAT job. Here are the native options and a faster one.

Native options

Bulk Administration > Phones > Update Lines, filter by a query and set a field across the result set.
Export/import if you need per-DN values, with the usual CSV round trip.

The live way

Phone Blitz shows every DN and its settings in a searchable grid. Filter to the numbers you care about, edit call forwards, line CSS, or display fields inline, and push the change across hundreds of phones in one queued apply. Dropdowns come live from the cluster, so you cannot set a value that does not exist.

Edit DNs in a live grid

See the spreadsheet-style editor with queued bulk apply.

View the Phone Blitz overview Request a quote

Related: a faster alternative to BAT.