案例:林某于1996年9月进入某通信公司市场部计费组工作,双方于1999年11月签订第一份劳动合同,2002年12月20日续签第二份劳动合同,第二份合同所约定的合同期限是从2002年12月20日起至2004年2月28日止,双方于2004年1月30日经协商一致同意将合同期延长至2006年3月31日。2006年2月27日,通信公司向申诉人发出《终止劳动合同意向通知书》,明确告知林某2006 Case: Lin entered the accounting group of marketing department of a telecommunications company in September 1996. Both parties signed the first labor contract in November 1999, the second labor contract was renewed on December 20, 2002, and the second contract The agreed term of the contract is from December 20, 2002 until February 28, 2004, and the two parties agreed by consensus on January 30, 2004 to extend the contract term to March 31, 2006. On February 27, 2006, the communications company issued a Notice of Intent to End the Labor Contract to the claimant, clearly informing Lin 2006