A press release from the county states time slots will fill up quickly due to a limited supply.
"We have a very small group that can assist people via phone," the release states, adding that phone signups should only be used by those without internet access. "It's not a massive call-in center, Please allow those who truly need to make an appointment by phone use that system."
For more information, click here, and to sign up for a Pfizer COVID-19 appointment, click here. For telephone signup, call 512-938-1650.