PER CURIAM:
This is an appeal from an order entered by the trial court granting the motion of appellees Baxter, et al. (hereinafter appel-lees) to quash service of process on the ground that the court could not permissibly exercise personal jurisdiction over appel-lees.1 Appellant contends that the trial court erred in granting appellees’ motion to quash service since appellees had sufficient contacts with the District of Columbia as to fall within D.C.Code 1973, § 13-423, the District of Columbia long-arm statute.
In Part I of this opinion we set forth the pertinent facts. In Part II we address the issue of whether the “transacting any business” provision, § 13 — 423(a)(1), of the District’s long-arm statute is coextensive with the due process clause of the United States Constitution. Concluding that it is, we then, in Part III, analyze whether appellant has alleged sufficient facts to support jurisdiction over appellees. We conclude that he has and, accordingly, reverse and remand.2
I
Appellant is a District of Columbia attorney who specializes in the practice of trademark and patent law. Appellees are a North Miami Beach, Florida, law firm and its individual partners. Sometime in May 1974, appellee Lawrence B. Friedman telephoned appellant in the District of Columbia, requesting him to assist Mr. Friedman and his law firm with a lawsuit that had been filed against a client of Mr. Friedman’s law firm in the federal district court [990]*990in Florida. The Florida suit involved claims that appellees’ client was guilty of, inter alia, trademark infringements and unfair competition. In this telephone conversation, Mr. Friedman stated that his law firm lacked technical expertise in patent and trademark law, and that they needed appellant’s assistance. Mr. Friedman indicated, however, that his law firm would remain active in the ease with appellant assisting them.
During this telephone call, appellant agreed to work with appellees and the parties confirmed that agreement in subsequent discussions and correspondence which generally set forth appellant’s duties and compensation.3 According to the agreement, appellant was to work primarily in the District of Columbia with some consultation and possibly some court appearances in Florida. Pursuant to that agreement appellant performed considerable work for appellees, most of the work being performed in the District of Columbia and, to a lesser extent, at the United States Patent Office facilities in Virginia. Appellant’s services included the preparation of interrogatories, legal memoranda, and other matters in connection with discovery in the pending litigation.
A dispute arose as to the amount of compensation appellant was to receive for his services. Thereafter appellant brought suit in the Superior Court of the District of Columbia seeking recovery of fees for the legal services rendered. Appellees were served by certified mail at their place of business in North Miami Beach, Florida. Appellees moved to quash service of process, contending that the Superior Court could not permissibly exercise personal jurisdiction over them. The trial court granted the motion to quash service without opinion, and this appeal followed.
II
A court may assert personal jurisdiction over a nonresident defendant where service of process is authorized by statute and where the service of process so authorized is consistent with due process. International Shoe Co. v. Washington, 326 U.S. 310, 66 S.Ct. 154, 90 L.Ed. 95 (1945). The District of Columbia “long-arm statute” enumerates the various acts of a nonresident defendant which support the assertion of personal jurisdiction.4 We have held [991]*991that this statute permits the exercise of personal jurisdiction to the fullest extent permissible under the due process clause. See Berwyn Fuel, Inc. v. Hogan, D.C.App., 399 A.2d 79, 80 (1979); Rose v. Silver, D.C.App., 394 A.2d 1368, 1369 (1978); Cohane v. Arpeja-California, Inc., D.C.App., 385 A.2d 153, 158, cert. denied, 439 U.S. 980, 99 S.Ct. 567, 58 L.Ed.2d 651 (1978); Environmental Research International, Inc. v. Lockwood Greene Engineers, Inc., D.C.App., 355 A.2d 808, 810-11 (1976) (en banc). We based this conclusion on the legislative history of the District’s long-arm statute which indicated that Congress intended to vest courts of the District with jurisdictional reach identical to that in effect in Maryland and substantially the same as that in effect in Virginia. See S.Rep.No.405, 91st Cong., 1st Sess. 35 (1969); H.R.Rep.No.907, 91st Cong., 2d Sess. 61 (1970). Since the courts of Maryland and Virginia have interpreted their statutes as being coextensive with the due process clause, we concluded that our statute similarly contemplates the exercise of personal jurisdiction to the fullest extent permissible under the due process clause. However, the Maryland courts have observed that, while their long-arm statute supports an exercise of personal jurisdiction over all nonresident individuals and corporations that can constitutionally be reached, that proposition does not hold for each of the separate provisions of the long-arm statute. As the United States District Court for the District of Maryland stated in Piracci v. New York City Retirement System, 321 F.Supp. 1067, 1070 n. 3 (D.Md.1971):
If we consider the outer limits of jurisdiction permitted by the Due Process Clause as the circumference of a circle or the outer edge of a pie, and the six “enumerated acts” in § 96(a)(1) — (6) [Maryland’s long-arm statute] as six slices of the pie it appears that some slices go all the way to the outer limit of the circle, while others stop short of the outer limit.
To be sure, Maryland courts have interpreted the “transacting any business” provision of their long-arm statute as being coextensive with the due process clause, while they have interpreted several other provisions as having a much narrower scope. Compare Groom v. Margulies, 257 Md. 691, 265 A.2d 249 (1970) (construing “transacting any business” provision) with Beaty v. M. S. Steel Co., 401 F.2d 157, 161 (4th Cir. 1968), cert. denied, 393 U.S. 1049 [89 S.Ct. 686, 21 L.Ed.2d 691] (1969) (construing the Maryland equivalent of our § 13-423(a)(4), the “causing tortious injury” provision); Vitro Electronics v. Milgray Electronics, Inc., 255 Md. 498, 258 A.2d 749 (1969) (same). See Margoles v. Johns, 157 U.S.App.D.C. 209, 218, 483 F.2d 1212, 1221 (1973); Piracci v. New York City Retirement System, supra at 1070.
Our concern in this case (as was true in Berwyn Fuel, Rose, Cohane, and Lockwood Greene) is not with the limits of other sections of the District’s long-arm statute, but solely with the scope of the “transacting any business” provision. Again, the legislative history of the statute is illuminating. The relevant portion of the Senate Report accompanying the District of Columbia Court Reform and Criminal Procedure Act of 1970 states as follows:
A new chapter (4) is added, incorporating a modified version of the first two articles of the Uniform Interstate and International Procedure Act.
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PER CURIAM:
This is an appeal from an order entered by the trial court granting the motion of appellees Baxter, et al. (hereinafter appel-lees) to quash service of process on the ground that the court could not permissibly exercise personal jurisdiction over appel-lees.1 Appellant contends that the trial court erred in granting appellees’ motion to quash service since appellees had sufficient contacts with the District of Columbia as to fall within D.C.Code 1973, § 13-423, the District of Columbia long-arm statute.
In Part I of this opinion we set forth the pertinent facts. In Part II we address the issue of whether the “transacting any business” provision, § 13 — 423(a)(1), of the District’s long-arm statute is coextensive with the due process clause of the United States Constitution. Concluding that it is, we then, in Part III, analyze whether appellant has alleged sufficient facts to support jurisdiction over appellees. We conclude that he has and, accordingly, reverse and remand.2
I
Appellant is a District of Columbia attorney who specializes in the practice of trademark and patent law. Appellees are a North Miami Beach, Florida, law firm and its individual partners. Sometime in May 1974, appellee Lawrence B. Friedman telephoned appellant in the District of Columbia, requesting him to assist Mr. Friedman and his law firm with a lawsuit that had been filed against a client of Mr. Friedman’s law firm in the federal district court [990]*990in Florida. The Florida suit involved claims that appellees’ client was guilty of, inter alia, trademark infringements and unfair competition. In this telephone conversation, Mr. Friedman stated that his law firm lacked technical expertise in patent and trademark law, and that they needed appellant’s assistance. Mr. Friedman indicated, however, that his law firm would remain active in the ease with appellant assisting them.
During this telephone call, appellant agreed to work with appellees and the parties confirmed that agreement in subsequent discussions and correspondence which generally set forth appellant’s duties and compensation.3 According to the agreement, appellant was to work primarily in the District of Columbia with some consultation and possibly some court appearances in Florida. Pursuant to that agreement appellant performed considerable work for appellees, most of the work being performed in the District of Columbia and, to a lesser extent, at the United States Patent Office facilities in Virginia. Appellant’s services included the preparation of interrogatories, legal memoranda, and other matters in connection with discovery in the pending litigation.
A dispute arose as to the amount of compensation appellant was to receive for his services. Thereafter appellant brought suit in the Superior Court of the District of Columbia seeking recovery of fees for the legal services rendered. Appellees were served by certified mail at their place of business in North Miami Beach, Florida. Appellees moved to quash service of process, contending that the Superior Court could not permissibly exercise personal jurisdiction over them. The trial court granted the motion to quash service without opinion, and this appeal followed.
II
A court may assert personal jurisdiction over a nonresident defendant where service of process is authorized by statute and where the service of process so authorized is consistent with due process. International Shoe Co. v. Washington, 326 U.S. 310, 66 S.Ct. 154, 90 L.Ed. 95 (1945). The District of Columbia “long-arm statute” enumerates the various acts of a nonresident defendant which support the assertion of personal jurisdiction.4 We have held [991]*991that this statute permits the exercise of personal jurisdiction to the fullest extent permissible under the due process clause. See Berwyn Fuel, Inc. v. Hogan, D.C.App., 399 A.2d 79, 80 (1979); Rose v. Silver, D.C.App., 394 A.2d 1368, 1369 (1978); Cohane v. Arpeja-California, Inc., D.C.App., 385 A.2d 153, 158, cert. denied, 439 U.S. 980, 99 S.Ct. 567, 58 L.Ed.2d 651 (1978); Environmental Research International, Inc. v. Lockwood Greene Engineers, Inc., D.C.App., 355 A.2d 808, 810-11 (1976) (en banc). We based this conclusion on the legislative history of the District’s long-arm statute which indicated that Congress intended to vest courts of the District with jurisdictional reach identical to that in effect in Maryland and substantially the same as that in effect in Virginia. See S.Rep.No.405, 91st Cong., 1st Sess. 35 (1969); H.R.Rep.No.907, 91st Cong., 2d Sess. 61 (1970). Since the courts of Maryland and Virginia have interpreted their statutes as being coextensive with the due process clause, we concluded that our statute similarly contemplates the exercise of personal jurisdiction to the fullest extent permissible under the due process clause. However, the Maryland courts have observed that, while their long-arm statute supports an exercise of personal jurisdiction over all nonresident individuals and corporations that can constitutionally be reached, that proposition does not hold for each of the separate provisions of the long-arm statute. As the United States District Court for the District of Maryland stated in Piracci v. New York City Retirement System, 321 F.Supp. 1067, 1070 n. 3 (D.Md.1971):
If we consider the outer limits of jurisdiction permitted by the Due Process Clause as the circumference of a circle or the outer edge of a pie, and the six “enumerated acts” in § 96(a)(1) — (6) [Maryland’s long-arm statute] as six slices of the pie it appears that some slices go all the way to the outer limit of the circle, while others stop short of the outer limit.
To be sure, Maryland courts have interpreted the “transacting any business” provision of their long-arm statute as being coextensive with the due process clause, while they have interpreted several other provisions as having a much narrower scope. Compare Groom v. Margulies, 257 Md. 691, 265 A.2d 249 (1970) (construing “transacting any business” provision) with Beaty v. M. S. Steel Co., 401 F.2d 157, 161 (4th Cir. 1968), cert. denied, 393 U.S. 1049 [89 S.Ct. 686, 21 L.Ed.2d 691] (1969) (construing the Maryland equivalent of our § 13-423(a)(4), the “causing tortious injury” provision); Vitro Electronics v. Milgray Electronics, Inc., 255 Md. 498, 258 A.2d 749 (1969) (same). See Margoles v. Johns, 157 U.S.App.D.C. 209, 218, 483 F.2d 1212, 1221 (1973); Piracci v. New York City Retirement System, supra at 1070.
Our concern in this case (as was true in Berwyn Fuel, Rose, Cohane, and Lockwood Greene) is not with the limits of other sections of the District’s long-arm statute, but solely with the scope of the “transacting any business” provision. Again, the legislative history of the statute is illuminating. The relevant portion of the Senate Report accompanying the District of Columbia Court Reform and Criminal Procedure Act of 1970 states as follows:
A new chapter (4) is added, incorporating a modified version of the first two articles of the Uniform Interstate and International Procedure Act. The uniform provisions codify recent case law with respect to extraterritorial jurisdiction over and service upon persons in civil [992]*992litigation, and supply the reorganized trial bench of general jurisdiction with a necessary procedural adjunct. Chapter 4 more specifically grants expanded bases of jurisdiction and modes of service identical to or reciprocal with those provided under the laws of the nearby State of Maryland for the courts of that State, and substantially the same as those provided in the adjacent State of Virginia and approximately 10 other States. [S.Rep.No.405, 91st Cong., 1st Sess. 35 (1969).]
Moreover, the House Report accompanying the Court Reform Act states that our statute “is modeled on the Uniform Interstate and International Procedure Act....” See H.R.Rep.No.907, 91st Cong., 2d Sess. 61 (1970).5 The Commissioner’s Comment, filed with the Uniform Act, states that the words “transacting any business” should be given an expansive interpretation. See Commissioner’s Comment, § 1.03(a)(1) of the Uniform Act, 13 Uniform Laws Ann. 467 (1980). Thus, the legislative history of our long-arm statute, as well as decisions by the courts of Maryland and Virginia construing their comparable statutory provisions, compels the conclusion that the “transacting any business” provision is coextensive with the due process clause. See Margoles v. Johns, supra 157 U.S.App.D.C. at 215, 483 F.2d at 1218; Meyers v. Smith, 460 F.Supp. 621, 622 (D.D.C.1978); John G. Kolbe, Inc. v. Chromodern Chair Co., 211 Va. 736, 180 S.E.2d 664 (1971).
Normally, our analysis would require a two-step process. First we would address the question of whether appellant had alleged sufficient facts to reach appellees under the terms of the applicable District statute. Only then, if the answer to our first inquiry was in the affirmative, would we address the due process issue. However, “[o]ur inquiry need not be bifurcated [where] the constitutional and statutory provisions are coextensive.... ” Textile Museum v. F. Eberstadt & Co., 440 F.Supp. 30, 31 (D.D.C.1977); see World-Wide Volkswagen Corp. v. Woodson, 444 U.S. 286, 290, 100 S.Ct 559, 563, 62 L.Ed.2d 490 (1980) (“Although the [Supreme Court of Oklahoma] noted that the proper approach was to test jurisdiction against both statutory and constitutional standards, its analysis did not distinguish these questions, probably because [the statute] has been interpreted as conferring jurisdiction to the limits permitted by the United States Constitution.” (emphasis added) (footnote omitted)); Piracci v. New York City Retirement System, supra at 1070 (“So, in this case, the two questions specified by the Fourth Circuit in Haynes [whether the controlling statute permits service of process on the defendant, and whether service under the statute violates the due process clause] tend to merge and become essentially the same.”).
Decisions in this jurisdiction interpreting the “transacting any business” provision are but applications of this principle. It is now well-settled that the “transacting any business” provision embraces those contractual activities of a nonresident defendant which cause a consequence here. See, e. g., Rose v. Silver, supra; Cohane v. Arpeja-California, Inc., supra.6 Moreover, to fall within the purview of § 13-423(a)(l), a nonresident defendant need not have been physically present in the District. See, e. g., Dorothy K. Winston & Co. v. Town Heights Development, Inc., 376 F.Supp. 1214, 1216 (D.D.C.1974). Indeed, we have acknowledged that, under certain circumstances, a single act may be sufficient to constitute transacting business. Bueno v. [993]*993La Compania Peruana, D.C.App., 375 A.2d 6, 9 (1977); accord John G. Kolbe, Inc. v. Chromodern Chair Co., supra. In sum, the sweep of the “transacting any business” provision of D.C.Code 1973, § 13-423(a)(l), covers any transaction of business in the District of Columbia that can be reached jurisdictionally without offending the due process clause. See Margoles v. Johns, supra at 218, 483 F.2d at 1221; Meyers v. Smith, supra at 622; Piracci v. New York City Retirement System, supra at 1070; Groom v. Margulies, supra. See also John G. Kolbe, Inc. v. Chromodern Chair Co., supra. Thus, to determine whether the statute can reach the conduct at issue, we must consider whether appellees had sufficient contacts with the District such that the assertion of personal jurisdiction comports with due process. International Shoe Co. v. Washington, supra. Stated another way, we must determine whether there exists “a sufficient connection between the defendant and the forum State as to make it fair to require defense of the action in the forum.” Kulko v. Superior Court, 436 U.S. 84, 91, 98 S.Ct. 1690, 1696, 56 L.Ed.2d 132 (1978).
Ill
Supreme Court decisions subsequent to International Shoe have defined due process limits of in personam jurisdiction over a nonresident defendant. See Hanson v. Denckla, 357 U.S. 235, 78 S.Ct. 1228, 2 L.Ed.2d 1283 (1958); McGee v. International Life Insurance Co., 355 U.S. 220, 78 S.Ct. 199, 2 L.Ed.2d 223 (1957). These decisions, therefore, provide the necessary guidance for an inquiry into the due process limitations of the assertion of personal jurisdiction.
In McGee, the plaintiff sued a Texas life insurance company in California. The Texas company’s contacts with California were slight. The policyholder bought his policy from an Arizona company whose obligations were assumed by the Texas company. The company mailed a reinsurance certificate to the policyholder in California and the policyholder accepted the offer to reinsure him on the same terms as his old policy, and until his death he continued to mail premiums from California. Otherwise, the Texas company had never solicited or done any business in California. A unanimous Court ruled that it was “sufficient for purposes of due process that the suit was based on a contract which had substantial connection with that State.” 355 U.S. at 223, 78 S.Ct. at 201.7 The Supreme Court refined the holding of McGee in Hanson. In Hanson, a Pennsylvania domiciliary executed a trust in Delaware, naming a Delaware bank as trustee. Later, the settlor moved to Florida where she received trust income and purported to execute a power of appointment as to the remainder of the trust. After the settlor’s death, several of the residuary legatees brought suit in Florida challenging the validity of the power of appointment. Long-arm service was made on the Delaware trustee in Delaware. The Court held that the settlor’s performance of small amounts of trust administration and the receipt of trust income in Florida did not give Florida a substantial connection with the trust agreement which was the basis of the suit. Moreover, the Court pointed out that at the time of the execution of the agreement, the defendant trustee had no contacts with Florida, and the contacts of the trustee-defendant which arose subsequently were in no sense voluntary but the result of the settlor’s unilateral acts years after the execution of the agreement. The Court concluded that “it is essential in each case that there be some act by which the defendant purposefully avails itself of the privilege of conducting activities within the forum State, thus invoking the benefits and protections of its laws.” Hanson v. Denckla, supra, 357 U.S. at 253, 78 S.Ct. at 1240.
Similarly, where in World-Wide Volkswagen v. Woodson, supra, “the defendants’ only connection with Oklahoma [was] the [994]*994fact that an automobile sold in New York to New York residents became involved in an accident in Oklahoma,” 444 U.S. at 287, 100 S.Ct. at 562, in personam jurisdiction could not be acquired constitutionally by means of the Oklahoma long-arm statute. The defendant automobile distributor dealt with retailers located exclusively in the tristate area of New York, New Jersey, and Connecticut. The retail dealer who sold the vehicle in question to plaintiffs operated solely in New York. “[T]he fortuitous circumstances that a single Audi automobile, sold in New York to New York residents, happened to suffer an accident while passing through Oklahoma,” id. at 295, 100 S.Ct. at 566, was foreseeable; however, what is critical to due process is “not the mere likelihood that a product will find its way into a forum State. Rather, it is that the defendant’s conduct and connection with the forum State are such that he should reasonably anticipate being haled into court there.” Id. at 297, 100 S.Ct. at 567.
It is important to note that in McGee, unlike in either Hanson or World-Wide Volkswagen, defendant had solicited business in the forum state. As the court stated in Vencedor Manufacturing Co. v. Gougler Industries, Inc., 557 F.2d 886, 891 (1st Cir. 1977); “The second fact distinguishing Hanson from McGee was the McGee defendant’s solicitation of business in the forum state. After McGee it seems fair to say that one who solicits in a state may be sued there if the transaction he has sought goes sour.” Again, the court in Vencedor noted: “Hanson is sufficiently distinguished from McGee by the absence, in Hanson, of any solicitation or other voluntary contact with the forum.” Id. at 894 (emphasis added).
The distinction between a plaintiff’s unilateral acts and those acts of the defendant sufficient to subject him to long-arm in personam jurisdiction, was highlighted in the recent case of Pedi Bares, Inc. v. P & C Food Markets, Inc., 567 F.2d 933 (10th Cir. 1977). Pedi Bares, a Kansas footwear manufacturer, brought suit in Kansas against P & C, a New York wholesale grocer serving independently-owned stores in New York and Pennsylvania, for the balance claimed due on goods sold. P & C had placed an order with plaintiff’s New York agent, after the agent had made a business solicitation. Pursuant to the order P & C received the goods shipped to it by plaintiff at its warehouse and sent partial payment to plaintiff in Kansas. In addressing P & C’s contention that it could not be reached by means of the Kansas long-arm statute without offending due process, the court stated:
P & C contends that application of a long-arm statute cannot be based on the unilateral acts of the seller in the forum state. The argument is not pertinent here. P & C acted affirmatively. It wrote the letter which initiated the transactions. Stores serviced by P & C ordered the goods which were manufactured in and shipped from Kansas. P & C sent to Pedi Bares in Kansas payments for part of the goods. Due process does not require the presence in the forum state of the defendant or one of its agents. [Id. at 937.]
In the present case it is clear that, like P & C, appellees initiated the transaction; ordered the services which were performed in, and the results of which were in part dispatched from, the District; and sent payments in part for the services performed to appellant in the District. We do not, therefore, have a case where appellant relies on his own unilateral activities in asserting jurisdiction under the long-arm statute. See also O’Brien v. Lanpar Co., 399 S.W.2d 340, 343 (Tex.1966) (“Plaintiff O’Brien did not depend upon his own unilateral activity with respect to one who was outside and remained outside of Illinois, but upon the fact that Lanpar’s agent contacted him in Illinois.”)8
[995]*995Both Hanson and McGee reaffirmed the International Shoe principle that notions of fundamental fairness require that the defendant’s contacts with the forum be evaluated qualitatively rather than quantitatively. More importantly, both decisions demonstrate that proper application of the minimum contacts formula requires a consideration not only of whether a nonresident defendant has sufficient contacts with the forum, but also of whether those contacts are voluntary and deliberate, rather than fortuitous. See Developments in the Law—State-Court Jurisdiction, 73 Harv.L.Rev. 909, 928 (1960). See also World-Wide Volkswagen, supra 444 U.S. at 287, 296, 100 S.Ct. at 562, 566. As the Supreme Court has stated, “the relationship among the defendant, the forum, and the litigation ... [is] the central concern of the inquiry into personal jurisdiction.” Shaffer v. Heitner, 433 U.S. 186, 204, 97 S.Ct. 2569, 2580, 53 L.Ed.2d 683 (1977) (footnote omitted).9
These considerations assume greater significance when the defendant’s contacts with the forum arise out of a contractual arrangement with a forum plaintiff. Modern systems of communication have revolutionized commercial transactions to such an extent that parties may negotiate by telephone certain contractual arrangements which only a generation ago would have necessitated the physical presence of both parties in the same forum. Courts have recognized that, even though a nonresident defendant has never physically been present in the forum, his contacts with the forum when viewed qualitatively may be quite substantial. Thus, the exercise of personal jurisdiction has been sustained where the nonresident defendant’s only contact with the forum has been by mail or telephone. See, e. g., Cook Associates, Inc. v. Colonial Broach & Machine Co., 14 Ill.App.3d 965, 304 N.E.2d 27 (1973); G & W Body Works, Inc. v. Estate of Eschberger, 557 S.W.2d 835 (Tex.Civ.App.1977). See also Morton v. Environmental Land Systems, Ltd., 55 Ill. App.3d 369, 13 Ill.Dec. 79, 370 N.E.2d 1106 (1977); Cohn-Daniel Corp. v. Corporacion De la Fonda, Inc., 514 S.W.2d 338 (Tex.Civ.App.1974).10 Clearly, the most critical inquiry is not whether the nonresident defendant is physically present in the forum but whether the defendant’s contacts with the forum are of such a quality and nature that they manifest a deliberate and voluntary association with the forum. As one court has stated, “[t]he operative considera[996]*996tion is that the defendant’s contacts with the forum were deliberate, rather than fortuitous, so that the possible need to invoke the benefits and protections of the forum’s laws was reasonably foreseeable, if not foreseen, rather than a surprise.” Product Promotions, Inc. v. Cousteau, 495 F.2d 483, 496 (5th Cir. 1974) (footnote omitted).
Courts of other jurisdictions have had occasion to consider facts analogous to those presented in this case under similar statutes. See, e. g., Cook Associates, Inc. v. Colonial Broach & Machine Co., supra (jurisdiction upheld in suit between resident employment agency and nonresident defendant); O’Brien v. Lanpar Co., 399 S.W.2d 340 (Tex.1966) (Illinois judgment secured by Illinois attorney through long-arm jurisdiction over Texas client held enforceable in Texas); Toulouse v. Swanson, 73 Wash.2d 331, 334, 438 P.2d 578, 580 (1968) (jurisdiction proper in suit by resident attorney to collect fees) (“It is beyond dispute that defendant consummated a transaction in this state when he employed plaintiff as his lawyer; and that the present action arises from that transaction.”); cf. Willis v. Semmes, Bowen & Semmes, 441 F.Supp. 1235 (E.D.Va.1977) (jurisdiction over Maryland attorney sustained in breach of contract suit brought by Virginia resident). But see Winick v. Jackson, 49 Misc.2d 1009, 268 N.Y.S.2d 768 (1966) (jurisdiction improper in suit between resident attorney and nonresident client in suit to collect attorneys fees). We find the analysis of those courts that have upheld jurisdiction in these circumstances to be persuasive. O’Brien v. Lanpar Co., supra and Cook Associates, Inc. v. Colonial Broach & Machine Co., supra, are illustrative of these cases. In Lanpar, a Texas company retained an Illinois attorney to prosecute an action on its behalf in the federal district court in Illinois. Later, the attorney brought suit in Illinois, alleging that he was not compensated fully under the terms of the contract. A default judgment was secured and plaintiff brought suit in Texas to enforce judgment. The Supreme Court of Texas held that jurisdiction over the defendants in Illinois was proper and that the Illinois judgment thus was entitled to full faith and credit in Texas.11
In Cook Associates, a Michigan company contacted an Illinois employment agency by telephone. The agency recommended a prospective employee to the firm; the employee was later hired but the agency’s fee was never paid. As the court stated:
Once defendant informed plaintiff that it was interested in a certain person to fill a position and agreed to pay plaintiff’s referral fee if it eventually hired that person, defendant knew, or should have known, that it had entered into a contract with an Illinois agency, that the agency would perform its services from its office in Illinois, that the fee, if due, would be paid to plaintiff in Illinois, and that if the fee were not paid as promised, defendant might be liable to suit in the Illinois courts. [Id. 14 Ill.App.3d at 970, 304 N.E.2d at 31.]
In applying these principles to the present case, we are persuaded that appellant has alleged sufficient facts to support jurisdiction under § 13-423(a)(l). Appel-lees solicited appellant in the District of Columbia to perform work in major part in the District of Columbia.12 Moreover, the contract at issue was executed and performed in significant part in the District.13 [997]*997We hold that appellees were transacting business in the District within the meaning of § 13-423(a)(l). Moreover, we are satisfied that appellees’ contacts are of such a quality that the assertion of personal jurisdiction over appellees does not offend due process.14 Appellees contacted appellant to perform work which they had reason to know would be performed in large part in the District. Appellant accepted the contract and agreed to lend his technical expertise toward appellees’ work in the Florida litigation and performed part of his obligation under the contract in the District as both parties contemplated. Thus the contract had substantial connection with the District. McGee, supra.15 Finally, far from being fortuitous or accidental, appellees’ contacts were deliberate and voluntary as evidenced by the communications between appellees and appellant in the District, which appellees had initiated in the first instance.16 In sum, appellees voluntarily initiated, and entered into, a contract with one they knew to be located in the District and engaged in a transaction which had a substantial connection with the District and which they foresaw would have consequences here.17 In so doing, appellees have invoked the benefits and protections of the District’s laws. Hanson v. Denckla, supra. Within the meaning of § 13-423(a)(l), ap-[998]*998pellees, by their conduct,18 transacted business within the District of Columbia.
Having concluded that the assertion of personal jurisdiction would not offend due process, we hold that the trial court erred in granting appellees’ motion to quash service. Accordingly, we reverse and remand with the instructions to deny the motion to quash service.
So ordered.
KELLY, J., concurs in the result.