University Systems help centre

Best practices for cleaning your phone

Dust and other contaminants can hinder the performance of your phone, causing static and unexpected failures.

A slightly dampened soft cloth should be used to clean or wipe down your phone. Do not use any liquids or powders directly on the phone to clean or for other purposes. Liquids and powders can contaminate the electronic components and cause failures.

Cleaning the hookswitch contacts

The hookswitch contacts design uses a wipe action to self-clean the contacts. Periods of nonuse of the phone allow air impurities such as dust and other contaminants to hinder contact performance, which results in intermittent operation. Press and release the hookswitch (located on the cradle area) rapidly a dozen times or so to clean the contacts.

Contacting Network Services

If the above doesn't fix your phone's performance issues, please contact Network Services at