How To Activate a Phone WF721

What is a Phone?

A mobile phone is a portable telephone that can make and receive calls over a radio frequency link while the user moves within a telephone service area, as opposed to a fixed-location phone.

How To Activate a Phone WF721

Set Up Your Device

  1. Install the battery.
  2. Turn on your device.
  3. Check the wireless signal. …
  4. Connect the device to a phone.
  5. Place a test call.
  6. Set up voicemail and additional phones.

How do I activate my AT&T wireless home phone?

Go to and click “Activate Now” (If you have trouble activating your account online or don’t have access to the internet, follow the steps below for Other Activation Method.) Call 866-975-0050 from another phone to activate your account.

How can I activate my SIM card by SIM number?

You need to send an SMS to USSD code 121. The syntax or format of the SMS will look like this: SIM<20 digit new SIM card number of your new SIM> The message should be sent from the existing mobile number. Post that, you will receive an SMS for confirmation.