GVTC LibraryFAQsGeneral FAQs General FAQs Does GVTC offer Security Service? Yes. GVTC has been protecting homes and businesses against burglary, fire and medical emergency since 1982. Call our business office today or visit the Security section of this website for more details. How do I report trouble on my line? Call 1-800-367-4882, and follow the prompts to report trouble on any GVTC product or service. Is High Speed Internet available in my area? Broadband is available to almost 90% of all the total access lines in GVTC territory. To find out if this service is available at your address call 1-800-367-4882 to speak to a service representative. When will GVTC cable television be available in my area? We are continuing to extend GVTC cable television into new areas. Contact the local business office at 1-800-367-4882 to inquire if GVTC cable television is available at your location.