What if the acceptance date of the maintenance type contract is earlier than the expiration of the contract

To negotiate with the contractor to solve. Maintenance class contract acceptance date earlier than the expiration of the contract in order to negotiate with the contractor to solve the maintenance contract is the maintenance contract involves the maintenance party and the other party to sign the contract. The origin of the maintenance contract for telecommunications equipment, in the signing of the equipment contract, will include a certain period of warranty period, half a year to one year.