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CUCM Basic

  • Cisco IP Phones use "SEPXXXXX" (Selsius Ethere Phone) to idtenty themselves, where "XXXXX" is their MAC address.

  • SCCP and SIP are used or Cisco Phones, older phones use SCCP. This can be viewed under "CUCM -> Device -> Phone"

  • CM has two types of accounts: OS and application levels. System level can only be used by TAC for troubleshooting. We mainly use application level accounts.

  • The most used module is CUCM Administration.

  • Self care portal is used by end-users to change their own settings.

  • OS Admin portal is for managing OS level settings, which has a separated credential

  • CU Serviceability is for checking service status

  • CTI (Computer Telephony Integration) Route Point is mainly used by call centers

  • virwsapp359 is email to fax converting, the app is called RightFax

  • RTMT (Real Time Monitoring Tool) is a very useful tool that can be installed on host to trace activity of calls.

  • All writings to DB are done by the publisher, subscribers are read only. If the publisher is down, then no config change is not possible.

  • Route-pattern is for outgoing calls. Route-Patter -> Route-list -> Route-Group(s) -> GW(s)/Trunk(s). Configuration should be in a reversed order: GW(s) & Trunk(s) first.

  • Hunt group, and Media resource are in the similar structure.

  • CSS -> Partition(s) -> Ext(s)/Route Pattern(s)

  • Pickup Group is often used with Hunt Group

  • Route Plan Report is useful to find calling pattern system-wide

  • Transformation only change the numbers displayed on phones, translation change the numbers