New Practices for CUCM Dial Plans

Posted by Eric Losier on Apr 6, 2017 12:40:19 PM

 

Traditionally, enterprise dial plans for organizations running Cisco Unified Communications Manager (CUCM) were structured in a simple fashion. Each user would get assigned with an internal extension (aka Directory Number), usually 4 to 6 digits long. Users would also get assigned with an externally reachable phone number (aka DID, or Direct Inward Dial).

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Topics: CUCM, Cisco CUCM, global dial plan replication, ILS, GDPR, intercluster lookup service, EAN, Enterprise Alternate Number, E.164

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