AT&T calles Intermeida registered lines gets fast busy tone

Hi @Networkinguys! We understand your importance and let's get the help you need on calls going on fast busy tone.

Here are some possible reasons :

Network Congestion: Sometimes, network congestion can cause fast busy signals. Ensure that the network is not overloaded.
Number Format: When dialing, make sure to use the full 10-digit phone number (including the area code). Dialing with only 7 digits may lead to connection issues.
Call Waiting Settings: Check if call waiting is enabled on your device. If it’s off, incoming calls might not connect.
Call Protect: If you have Call Protect active on your account, it could block incoming calls. You can opt out of Call Protect to test if it resolves the issue.

Let us know if this information helps!

Thank you for contacting AT&T Community & Forums,

Susan, AT&T Community Specialist

This doesn't help we have a few numbers having the issue. Also we were told AT&T made a call routing change on Sunday or Monday. That is what Intermedia has related to us, please look into this further. I’m also pushing Intermedia to work with you as well. 

Hi @Networkinguys, after reviewing your concern and trying to resolve through the Community Forums, it looks like you may need more account specific support.  To assist you best, we encourage you to review our Contact us Page: https://www.att.com/support/contact-us/ to identify what method you’d prefer to reach out for this account level help.  You can call, chat, or reach out via social media, and we can review your specific issue and provide you support.  We’re sorry we weren’t able to resolve your concern directly in the forums, but let us know if we can assist with anything else.

Thank you for contacting AT&T Community & Forums,

Susan, AT&T Community Specialist