Browse to the website URL: https://wvsom.webex.com/. Click Login and use your standard network credentials to login.
Depending on your WebEx site settings, you can set up the following preferences in the Settings menu found on the left side of the screen:

Meetings
a. General: Set the time zone, language, and locale for the web pages on your WebEx site.
b. My Personal Room: Specify a unique name and a unique URL, copy the URL to share with others, automatically lock the room after you enter, and receive a notification when someone enters. You can also assign alternate hosts for your Personal Room meetings. For more information, see Change Your Cisco WebEx Personal Room Settings.
c. Audio and Video: Enter your phone number information and Personal Conferencing Information.
d. Scheduling: Set options for meeting type, templates, lobbies, sharing and permissions.
e. Recording: Set options for recording audio and video transcripts
f. Email templates: Customize the various email templates for webinars
Calling
a. Call Settings: Change general call related settings such as time zone, language, call forwarding and Do Not Disturb
b. Schedules: add schedules to your call availability
c. Voicemail: Check voicemails and change voicemail related settings like the PIN, and mailbox location.
Devices
a. My Device: Show and add Cisco Devices
b. Advanced option: Set Cisco device screen lock PIN