You need to develop an enterprise dial plan that eliminates potential overlaps such as this one. Either use e164 dial plan or variable length dial plan (think site codes) or uniform dial plan with extension length longer than 4 digits, i.e. 6, where the DN is last 6 digits of the DID or any other prefix normalized at ingress.
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Configuring Cloud Connected PSTN (CCP) – Easy as 1-2-3!
STEP 1: PREPARE
Before you can configure your CCP in Control Hub, you must procure PSTN services from an authorized Webex Calling CCP Partn...
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This topic is a chance to discuss more about how to read Cisco Unified Communications trace files. In this session, Cisco D...