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UCLA Home / Campus Services / Phone & Voice Services

IT Services Product & Services Catalog

Class of Service Options

What Does Class of Service Do?
Class of Service (COS) determines the access privileges and dialing range assigned to a telephone line and can help control telephone abuse.  International calling access allows unrestricted calling worldwide. COS options can be applied to a telephone line or to an authorization code.

Unrestricted COS Options for Outgoing Calls

  • International includes Mexico and Canada - COS02
  • USA, Puerto Rico, Alaska, Hawaii, Caribbean - COS04

 Restricted Campus COS Option for Outgoing Calls

  • Campus Only (unrestricted incoming/campus restricted outgoing calls) - COS11


IT Services Product and Service Rates May Be Subject to Change
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