package javax.sip.header; import java.text.ParseException; import javax.sip.InvalidArgumentException; public interface RetryAfterHeader extends Header, Parameters { String NAME = "Retry-After"; String getComment(); void setComment(String comment) throws ParseException; boolean hasComment(); void removeComment(); int getDuration(); void setDuration(int duration) throws InvalidArgumentException; void removeDuration(); int getRetryAfter(); void setRetryAfter(int retryAfter) throws InvalidArgumentException; }