Inmate Phone System
Families and friends, who wish to start a new account with GTL, should contact GTL’s AdvancePay Customer Service Department for more information about the Inmate Family Prepaid Program.
You can also contact GTL to block inmate telephone calls.
AdvancePay Service Dept.
Denver, Colorado 80291-1722
Phone 1-877-650-4249 or 1-866-230-7761
Customer Service Hours (Central Time):
Monday - Friday 6 a.m. to 10 p.m.
Saturday & Sunday 8 a.m. to 7 p.m.
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