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Webex Calling local gateway, and a separate contact center

Premises PSTN for Webex Calling uses Local Gateway. Webex Contact Center is a separate product with its own design guide.

Learn in 5 minutes

  1. Place premises PSTN on the Local Gateway pattern
  2. Cite the Webex Calling PSTN and Local Gateway pages
  3. Keep Webex Contact Center off this pattern until its own guide says otherwise

Visual

Premises PSTN through Local Gateway · study drawing · cyphermonkeylabs.com PSTNLocal GatewayWebex Calling INVITE 100 INVITE 200

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The edge hostname in production comes from the Local Gateway guide. This ladder uses example.com so it does not invent that name.

Worked example

Name the pattern Which product's premises-PSTN pattern is this ladder?

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

Fault

A design reuses the Webex Calling Local Gateway picture for Webex Contact Center and writes example.com into production as if it were the edge.

webex-lgw and webex-org are the Webex Calling pages. Contact center is a separate product.

Quiz

Premises PSTN for Webex Calling uses


The edge hostname in production is


Webex Contact Center


Organization PSTN settings are cited from


CUCM trunks and this local gateway are


The carrier address on this ladder is


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.

Programmable communications APIs Twilio’s docs home is API reference, tutorials, and integration for Twilio products. Elastic SIP Trunking is the SIP-shaped product already cited in this lab. This page does not define the word CPaaS from an RFC. Read the vendor page before you copy a diagram that uses that word.

Glossary · Ecosystem map · Ports · Troubleshooting

Sources and go deeper