WEBThis could be due to insufficient credit or MTCs service center number is not correctly entered into your hand set. Try the steps here and see if this fixes your issue. ... In this …
WEBContact MTC with questions or comments. Main Line: 415-778-6700. Public Information: 415-778-6757. TDD/TTY Phone: Dial 711 and ask to be relayed to 415-778-6700. …