Cisco Unified CM migration inventory: what to export and check
Every migration plan starts as a list of what exists. The list is always longer than anyone remembers, and the items people forget are the ones that fail on cutover day.
People and numbers
- End users with their primary extension, email address and site. The email address is what the cloud platform will use to identify them.
- Directory numbers and the partition each sits in. The same extension in two partitions is two different lines.
- Direct inward dial numbers and how each reaches its extension: a translation pattern, a number mask, or a full number on the line.
- Unassigned numbers and lines with no device. Decide whether they move, are released, or are kept in reserve.
Devices
- Phones by model, with the lines on each button. Sort them into models the target supports and models to replace.
- Phones last registered long ago. A device that has not registered in months is often gone.
- Analog ports on gateways and adapters: fax machines, door phones, overhead paging, elevator and alarm lines. Each needs an owner and a plan.
- Shared devices in lobbies, break rooms and conference rooms. These become common-area or workspace devices on the target.
- Soft clients and who relies on them as their only phone.
Call handling
- Hunt pilots, hunt lists and line groups with their members, order and what happens when nobody answers.
- Call pickup groups, call park ranges and intercom lines.
- Shared lines and which devices carry each one. Manager and assistant pairs are the usual case.
- Call forwarding already set on lines, including forwards to outside numbers.
- Auto attendants and call handlers in the voicemail system, with their schedules, menus and recorded greetings.
- Contact center entry points and CTI route points. These depend on other systems and usually move separately.
Routing and policy
- Calling search spaces that restrict who can dial what: lobby phones, international dialing, premium numbers.
- Route patterns, route lists and trunks, and which sites use which path to the telephone network.
- Emergency calling. How each site's calls are routed and what location is sent with them.
- Translation and transformation patterns that rewrite numbers on the way in or out.
Voicemail
- Mailboxes and whether saved messages and greetings must be kept.
- Shared and departmental mailboxes, and who checks them.
Turn the list into decisions
For each item, record one of three outcomes: it moves as it is, it moves in a different form, or it does not move and someone has agreed to that. An item with no outcome is not planned yet.
Count the items with no owner. That number is the real risk in the project.
Where Vector helps
Vector's on-site collector reads Unified CM and its voicemail system and produces this inventory as a signed file. Vector then shows which items map directly to the target, which need a decision, and which will not carry over.