A counter offer in a negotiation involving services, not goods

a. impliedly rejects an offer.

b. does not significantly alter the terms of the contract.

A counter offer in a negotiation involving services, not goods impliedly rejects an offer. When you counter offer something, that means you are rejecting the original offer that was made for the item. It is common to counter offer and negotiate when making a large purchase or a purchase with a lengthly contract time.