delivered the opinion of the court:
On January 4, 1889, an ordinance of the city of Chicago was passed authorizing the appellee, the Chicago Telephone Company, to construct, maintain and operate its lines of telephone wires in said city for twenty years. It was required to file with its acceptance of the ordinance a schedule showing the rates then charged for telephone service, and was prohibited from increasing to its existing or future subscribers the rates so established. The appellee accepted the ordinance and filed its schedule of rates showing that it charged $125 per year fpr a business telephone within the territory where the office of the appellant, the Illinois Glass Company, was located. Appellant contracted with appellee for a business telephone at that rate and used it for many years, up to October 11, 1897. The telephone so contracted for was known as the “grounded line,” and was the kind in use when the ordinance was passed. With the increase of wires and disturbing influences the telephone grew less efficient, and did not give satisfactory service by reason of humming, spluttering and hissing noises, which made it difficult to carry on a conversation. An improved service, known as the “metallic circuit,” was devised, which obviated the objection to the grounded line, and when the credit man of appellant complained to appellee of the service he was told that if appellant would procure the improved telephone equipment it would have better service, and that such improved telephone would cost $50 a year additional, or $175 a year.- The credit man said that the price was high, but was informed that the service would be better, and he consulted with a general officer" of appellant about the advisability of making the contract. He was authorized to do so, and on October 11, 1897, a contract was executed by which appellant was to pay $175 a year, quarterly in advance. The improved telephone was installed in the office *540of appellant and appellee rendered bills quarterly in advance for the service, which were paid for the ensuing five years. The amount so paid, was $209.97 in excess of the rate fixed by the ordinance, and on July 17, 1903, appellant brought this suit in the superior court of Cook county against appellee to,recover that amount. The declaration was in the common counts, to which the defendant pleaded the general issue and the five years’ Statute of Limitations. There was a trial by jury, and at the conclusion of the plaintiff’s evidence the court, on motion of the defendant, directed a verdict in defendant’s favor. A verdict was returned under that direction, and the plaintiff’s motion for a new trial was overruled and judgment was entered against it for costs. The Branch Appellate Court for the First District affirmed the judgment on appeal and granted a certificate of importance, under which this further appeal was prosecuted.
All the evidence in the case was introduced by the plaintiff, and it was thereby proved that the contract was entered into by it deliberately, after negotiations and with full knowledge of all the facts and conditions; that it was performed by the defendant according to its terms, and that the payments made under it, quarterly, for the period of five years, were made without any objection or protest or manifestation of unwillingness to pay the amount agreed to be paid.
In order to be relieved from its contract and to recover back a portion of the moneys paid, the plaintiff assumed the burden of establishing, by the evidence, facts from which the law would draw the conclusion that the defendant had received money which in justice belonged to the plaintiff and ought to be returned. There was neither fraud, misrepresentation nor mistake of fact, and it is not claimed that the payments were made upon a consideration which subsequently failed, but it is insisted that the fact of overpayment, alone, was sufficient to sustain the action. The fact of over-payment was established and is not disputed. *541The defendant was bound to furnish any improved service or equipment adopted by it to its customers within the territory where the plaintiff’s office was located, at the rate of $125 a year. (People v. Chicago Telephone Co. 220 Ill.38.) Counsel do not seriously contend that the mere fact of over-payment would authorize a recovery as between private individuals, or between individuals and municipal corporations or public officials collecting taxes, or generally in other relations, but the burden of their argument is that a distinction has been observed by other courts, and should be observed by this court, where the payment is made to a corporation rendering public service,' such as a railroad or telephone corporation. Such a distinction has never been made in any case in this court, and the real question here is, whether such a distinction ought to be recognized and a recovery be permitted merely because of a payment in excess of that which defendant had a legal right to demand.
It has been a universally recognized rule that money voluntarily paid under a claim of right to the payment and with knowledge of the facts by the person making the payment cannot be recovered back on the ground that the claim was illegal. It has been deemed necessary not only to show that the claim asserted was unlawful, but also that the payment was not voluntary; that- there was some necessity which amounted to compulsion, and payment was made under the influence of such compulsion. The ancient doctrine of duress of person, and later of goods, has been much relaxed, and extended so as to admit of compulsion of business and circumstances, and perhaps a telephone corporation having a system in general operation and connected with customers and other business houses might reasonably influence a business house to make an unwilling payment of an amount illegally demanded, which would make the payment compulsory. The telephone has become an instrument of such necessity in.business houses that a denial of its advantages would amount to a destruction of the busi*542ness. In the case of County of LaSalle v. Simmons, 5 Gilm. 513, a payment made for business reasons was declared by the court to be, in law and fact, a compulsory payment; The county commissioners had power to grant ferry licenses and to require payment therefor not exceeding $100. They gave notice that they would grant a certain ferry license to the person who would donate the largest amount to the county, and the plaintiff, who had previously kept the ferry, offered $500, which was accepted. It was held that he was compelled, by the force of circumstances over which he had no control, to advance a large sum of money to protect his business and that he could recover it back. In this case there was undoubted inequality of situation between the parties, but there was no evidence tending to show that the plaintiff was in any manner overcome by any necessity amounting to compulsion. The proposition for an improved service at an increased price was presented and accepted without objection, and there was entire acquiescence on the part of the plaintiff for a term of years thereafter.
From the nature of the question no very precise rules can be laid down as to what' will constitute a compulsory payment, but the general principles are illustrated by a number of cases. The principles were applied in two cases between the city of Chicago and owners of property who had paid illegal special assessments. In Bradford v. City of Chicago, 25 Ill. 411, it was held that a property owner could recover an assessment for the purpose of opening a street where the assessment was void and payment was made to a collector who had a warrant in his hands authorizing him to levy upon and sell the goods and chattels of thé property owner. On the other hand, in Elston v. City of Chicago, 40 Ill. 514, where the assessment was void but the payment was' made when there was no precept or execution in the hands of an officer by which the collection of the assessment could be enforced, it was held that the payment was not compulsory. The doctrine of that case, which *543is adhered to by practically all courts, is that a payment made with full knowledge of all the facts and circumstances, and in ignorance only of legal rights, cannot be recovered back. In order to render a payment compulsory, such a pressure must be brought to bear upon the person paying as to interfere with the free enjoyment of his rights of person or property, and the compulsion must furnish the motive for the payment sought to be avoided. Proof that one party is under no legal obligation to pay the money and that the other has no right to receive it is of no consequence unless the payment was compulsory, in the sense of depriving the one making the payment of the exercise of his free will. The rules were applied as between shipper and common carrier in the case of Chicago and Alton Railroad Co. v. Chicago, Vermilion and Wilmington Coal Co. 79 Ill. 121, where the coal company had no other outlet for its coal, and the court said it was a case of life Or death with the coal company, and it was bound to accede to any terms the railroad company might impose. In that case there was a controlling necessity arising from the circumstances under which the money was demanded and paid, and it was held that the shipper could recover from the railroad company the excess of freight over that which it was entitled to exact. There was no hint that there is any peculiar rule or test as between a public service corporation and one for whom the service is rendered. In Pemberton v. Williams, 87 Ill. 15, the assignee of a purchaser of land who had contracted to sell the land to another was compelled to pay the original vendor more than was due, in order to get a deed to satisfy his vendee, and made the payment under protest. That was a case of business necessity, and it was held to be a fair question for the jury whether the payment was not involuntary and made under a sort of moral duress. In Gannaway v. Barricklow, 203 Ill. 410, an administrator paid money falsely represented to be for back taxes of his intestate, and it was contended that the tax was voluntarily paid. *544The court said that a tax voluntarily paid, where there was no mistake of fact, could not be recovered back, but that the payment was made in that case on account of fraud and imposition, where no tax was ever levied or extended, and was not voluntary. In City of Chicago v. Northwestern Mutual Life Ins. Co. 218 Ill. 40, an owner of property was adjudged to have rightfully recovered from the city of Chicago water rates unlawfully exacted and paid under protest to prevent the city from carrying out a threat to shut off the water supply. The' payment was deemed compulsory. In Yates v. Royal Ins. Co. 200 Ill. 202, it was held that although a statute imposing a tax was unconstitutional and the tax illegal, it could not be recovered back if it was paid voluntarily. It was considered of no importance that the tax was illegal where it was paid under a mistake as to legal rights but with knowledge of all the facts.
Those cases clearly show the rules of law respecting voluntary and compulsory payments and their application to different conditions. They were applied to a common carrier, and to the city occupying the same position as a public service corporation in supplying water to the inhabitants of the city,—a public service performed by the city in the exercise of a private and not a governmental function. (Wagner v. City of Rock Island, 146 Ill. 139.) It was not thought that a mere over-payment to a railroad company carrying coal nor to the city for supplying water would-authorize a recovery, but it was assumed that there must be an added element of compulsion.
Much effort is made to show that the rule forbidding a recovery of illegal taxes voluntarily paid rests upon peculiar grounds distinguishing cases of that kind from this one, but if that were so it would be of no avail, since the rule is not confined to tax cases. However, we are not able to see any valid ground for declaring one rule in tax cases and a different rule in other cases. Counsel say that tax cases are distinguished by the facts that taxes are essential to the *545existence of the government; that the tax-payer necessarily derives some benefit from the tax that he has paid; that the collector of the tax acts as an agent of the government, and if the tax is recovered back the public funds are diminished. These propositions are all true, but we do not see how they affect the question. The government must be supplied with revenue, but that fact affords no justification for injury to a citizen or unjust or illegal exactions. The plaintiff derived some benefit from the money which it paid to the defendant,—in fact, all the benefit which was expected or that the contract provided for,—and we do not see that it makes any difference whether money is received by an agent for his principal or by the principal himself. If a tax is recovered back the public funds are diminished, but we do not see any ground for saying that the law would make the recovery of money voluntarily paid to a tax official impossible and at the same time make a recovery easy and certain if the money voluntarily paid was for telephone service. Not only has no distinction of that kind been made by this court, but we do not find among the cases cited by counsel any which contain no element of compulsion. The circumstances of different cases are so diverse and the nature of the question is such that, as before stated, no very precise rules can be laid down which will fit every case. Ordinarily, protest is the best evidence of compulsion or unwillingness to pay, and it is usually expected where the payment is made to one who has a right to make terms with the payor, but where protest would be useless it is superfluous. Examples are to be found in cases cited by counsel where a railroad company fixes its own rates and goods are tendered to an agent who has no authority to make any change in such rates and where a protest would be entirely useless. Compulsion may appear from the circumstances and not from any expression of unwillingness or protest against a payment; but that has no effect on the rule that a payment which is voluntary, and not compulsory, *546cannot be recovered back. Plaintiff was chargeable with knowledge that the defendant could not string its wires in the streets of the city and carry on its business without a license or grant from the city, which must be by ordinance, and the license was given by ordinance, upon terms and conditions for its enjoyment, and the ordinance is a local law of the city. Although the defendant could not legally require payment of more than $125 per year for the business telephone and the plaintiff was not legally bound to pay more, a larger sum was voluntarily paid without fraud, mistake of fact or other ground for annulling the contract. The court did not err in directing a verdict.
Complaint is made of rulings of the court on the admission of evidence, but as there was no ground for a recovery the rulings could not have been harmful and therefore' do not require attention.
The judgment of the Appellate Court is affirmed.
Judgment affirmed.