To request changes in system features (such as IDD, voicemail, pick-up group) , please ask your Department’s Telephone Coordinator to send a Telephone Services Application Form to ITSC.

Available To


Service Fee


Service Hours

ITSC Office Hours

Getting Started

Information required for the change:

■ User information: Department/User Name/Staff ID/Email /Post
■ Contact person information
■ Extension details:
    . Extension no.
    . Features to be changed
■ Effective date
■ Signature of Telephone Coordinator on application form