AT&T's Inbound Corporate Payment (ICP) process is the receipt of national standard ACH transmissions that include: CCD+ or CTX file formats
The 3 step enrollment process to send ACH payments to AT&T is outlined below:
1 - Complete and return the AT&T EFT/ACH Payment Registration form (ECF11)The purpose of this form is to provide AT&T with the critical information required to securely identify and accurately process payments received. To request a copy of this form, please send an
email to the ICP Enrollment mailbox or
download PDF and return to ICP Enrollment mailbox
email.
For AT&T EFT/ECH Enrollment process instructions
click here.
2 - Non-production testingAT&T processes all ACH transactions and addenda records internally. Therefore, AT&T must test prior to providing its banking information. Testing is done using a live "penny test" in a "test only" environment.
3 - Implementation - AT&T Banking Information (ECF12)After successful non-production testing, AT&T banking information is provided on an AT&T authorized form (ECF12).