package com.strohwitwer.awesomevalidation.utility;

public class RegexTemplate {

    public static final String TELEPHONE = "^\\+?[0-9()-]*";

    private RegexTemplate() {
        throw new AssertionError();
    }
}
package com.strohwitwer.awesomevalidation.utility;

public class RegexTemplate {

    public static final String TELEPHONE = "(^\\+)?[0-9()-]*";

    private RegexTemplate() {
        throw new AssertionError();
    }
}
Update telephone regex template.