IS Call Center

The IS Call Center supports Connectivity and establishes EDI access. They will also give basic technical support.

Hotline 314-235-7225

IS Call Center E-mail

Mechanized CLEC Support Center

877-681-2271

The AT&T Mechanized Customer Production Support Center (MCPSC) provides business process support to all CLECs using Operational Support Systems (OSSs) in all AT&T LEC regions. The MCPSC will assist CLECs in analyzing error codes, as well as resolving issues pertaining to process flows within each application. The MCPSC will investigate and analyze Problem Reports resulting from a CLEC reporting a problem with an OSS application.