Yes My Phone Seems Tobe Blocked,,,cannot Make Or Received Calls ...how Can I Unb

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AT&T Wireless Knowledge Base Results

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Answer Center | AT&T
... remains active until it is forwarded to make outgoing calls from the time the call is ended. If you forward your calls are billed airtime from your location, per minute/per call charges based on where the call forwarded may be forwarded. Call Forwarding overrides voicemail, when applicable. Incoming calls will receive a busy signal. Then, follow the activation instructions...
Answer Center | AT&T
... might interfere with a password or your corporate Mobile Data Service (MDS). Contact customer care for Push to make and receive calls as well as when on the Active Call screen and whenever you are connected to a Phone number. scroll down to register on the EDGE network, and is turned on devices using your SIM card...
Answer Center | AT&T
...the standby screen, tap Start Tap Phone Menu Tap Do not attempt to enter this ...SIM card being locked. Highlight "Call Barring", tap Get Settings Under "Block incoming calls" and "Block outgoing calls" select Off ok when complete. ...AT&T Tilt Symptom Unable to Place or Receive Calls from Certain Numbers IMPORTANT: Enabling dialing restrictions can ...