You get a variety of calling features with your AT&T Phone service. Features can be turned on and off through your phone portal or using the following star codes.
| Call forwarding | |||
| Feature | Description | Turn on | Turn off |
| All Call Forwarding | Forward incoming calls to an alternate number | Dial *72, enter a forwarding number, then press # | Dial *73# |
| Busy Call Forwarding | Forward all incoming calls to another number when your line is busy | Dial *90, enter a forwarding number, then press # | Dial *91# |
| No Answer Call Forwarding | Send missed calls to voicemail or to another number | Dial *92, enter a forwarding number, then press # | Dial *93# |
| Safe Call Forwarding | Forward calls to an alternate number in the event of a service disruption | Dial *372, enter a forwarding number, then press # | Dial *373# |
| Call filtering | |||
| Feature | Description | Turn on | Turn off |
| Call Blocking | Prevent calls from up to 100 numbers from ringing through to your phone | Dial *61 to block individual unwanted inbound calls Learn how to set up and manage a call blocking list online | Dial *80 Deactivate online in the Phone Portal |
| Call Screening | Accept calls from up to 20 designated numbers only | Activate online in the Phone Portal | Dial *84# |
| Exclusive Call Forwarding | Forward calls from up to 20 phone numbers to another phone number | Activate online in the Phone Portal | Dial *83# |
| Digital Phone Call Protect | Automatically block calls from likely scammers and get alerts about suspected spam2 | Activate online in the Phone Portal | |
| Incoming calls | |||
| Feature | Description | Turn on | Turn off |
| Anonymous Call Blocking | Prevent calls from callers who block their Caller ID information | Dial *77# | Dial *87# |
| Caller ID | Display your Caller ID information when you make an outgoing call | Caller ID is turned on by default with Phone service | |
| Caller ID on TV | Display incoming Caller ID information on TV screen | Activate online in the Phone Portal | Deactivate online in the Phone Portal |
| Call Trace | Trace the number of the call you received last. Note that there is a fee for each use of Call Trace which varies by area.1 | Dial *57# | |
| Do Not Disturb | Prevent all incoming calls from ringing through, giving callers a busy signal | Dial *78# | Dial *79# |
| Locate Me | Ring incoming calls to your phone number and up to four other numbers | Activate online in the Phone Portal | Dial *313# |
FYI: You must subscribe to U-verse TV to display Caller ID information on your TV.
| Outgoing calls | |||
| Feature | Description | Turn on | Turn off |
| Caller ID Blocking | Block your name and number on all outgoing calls | Activate online in the Phone Portal | Deactivate online in the Phone Portal |
| Caller ID Blocking (single call) | Block your name and number on a per call basis | Dial *67, the number you are calling, then press # | Dial *82, the number you are calling, then press # |
| Call Waiting | Play an audible tone when an incoming call is waiting to be answered | Call Waiting is activated by default with Phone service | |
| Cancel Call Waiting (all calls) | Stop Call Waiting for all calls so you are not interrupted | Dial *370# | Dial *371# |
| Cancel Call Waiting (single call) | Stop Call Waiting on a per-call basis so you are not interrupted | Dial *70, the number you are calling, then press # | Call Waiting resumes when you end your call |
| Cancel Call Waiting (mid-call) | Stop Call Waiting during an active call | Press Flash, dial *70#, then press # | Call Waiting resumes when you end your call |
| Directory Assistance Blocking | Prevent all outgoing calls to Directory Assistance | Activate online in the Phone Portal | Deactivate online in the Phone Portal |
| International Call Blocking | Prevent outgoing calls to international numbers | Activate online in the Phone Portal | |
| Three-way Calling | Add a third party to an existing conversation | Press Flash (or get a dial tone), dial the third party, press Flash again | End your call |