President Trump criticized AT&T for technical issues during a conference call with faith leaders.
AT&T responded, attributing the glitch to the conference call platform used and working to resolve the issue.
The criticism by Trump comes amid AT&T facing significant business implications due to his entry into the mobile services industry with 'Trump Mobile'.
AT&T's technical issues also coincide with previous security breaches, including involvement in class-action lawsuits over compromised customer data.