What does TCP/IP mean? TCP/IP stands for Transmission Control Protocol/Internet Protocol, which is a set of networking protocols that allows two or more computers to communicate. The Defense Data Network, part of the Department of Defense, developed TCP/IP, and it has been widely adopted as a networking standard. For more information, you may consult several TCP/IP-related FAQs at the FAQ.org website.
The customer support phone number of Suntrust Ach Department is 800.752.2515 / 800.382.3232 (Click phone number to call).
SunTrust Customer Service. You can contact SunTrust customer service by phone, email or ordinary mail. The phone number to talk to a bank representative is 1-800-634-7928, which remains the same when you need to use the Relay System. The mortgage mailing address for making general enquiries is as follows.