21449: Number already can be used for outgoing calls and messagesPositive FeedbackNegative FeedbackERROR: 21449error-21449 page anchorPositive FeedbackNegative FeedbackPHONE NUMBERSERROR Descriptiondescription page anchorPositive FeedbackNegative FeedbackThe number you attempted to add as an Outgoing Caller ID to your account already can be used for outgoing calls and messages.