関連ワード:  can i use mobile data while on call    can t use mobile data while on call    can t use mobile data while on call iphone    can t use mobile data while on call samsung    can t use mobile data while on call vodafone    can t use cellular data while on call iphone    can t use cellular data while on call    why cant i use mobile data while on a call    use mobile data while on call    use mobile data while on call iphone