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A glossary tied to a document

Every term in your notes points at a role and a document, not at a product logo.

Learn in 5 minutes

  1. Write the expansion and the role
  2. Attach a cite key that exists
  3. Keep product names out of the role column

Visual

Roles on a single call · study drawing · cyphermonkeylabs.com AliceSBCBob INVITE 100 INVITE 180 180 200 200 ACK

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If you cannot name the document, the row is not ready.

Worked example

Name the outbound role On the outbound INVITE, which role do you write if this SBC is a B2BUA?

  1. Press Play.
  2. Step until the hop named in the question.
  3. Inspect that message and answer the check.

Fault

A ticket says the failed hop is a CUCM, so the status code must be a CUCM invention. The message is SIP/2.0 180 Ringing with a normal To tag.

180 is RFC 3261 section 21. CUCM is the product series that sent or forwarded it.

Quiz

A glossary row contains


An SBC's usual role name is


CUCM in the glossary is


SDP's row in this edition cites


A neighbor with no SIP RFC


The 2xx ACK row cites


Ecosystem

Glossary, sister systems, and the integration seam for this room.

Workforce management WFM forecasts volume and builds schedules. It consumes contact-center events. It does not parse Via headers. When a forecast is wrong, the SIP symptom is usually queue delay and 480 or carrier congestion, not a broken dialog ID.

Glossary · Ecosystem map · Ports · Troubleshooting

Sources and go deeper