Optus Networks Pty Limited v Telstra Corporation Limited

What happened

This is a short follow-up judgment about the consequences of an earlier contractual finding, not a fresh determination of the underlying dispute. On 14 December 2001, the Court had declared that Telstra Corporation Limited (Telstra) breached a term of its agreement with Optus Networks Pty Limited and Optus Mobile Pty Ltd, collectively described as Optus in the reasons ([1]). Moore J said it was unnecessary to repeat the matters addressed in the earlier reasons.

At a hearing on 28 February 2002, the parties addressed whether injunctive relief should be granted and, if so, in what terms. The Court made two injunctions concerning Telstra’s HomeLine Net service ([2]). They restrained Telstra, after a 35-day period, from offering the service to new subscribers or continuing to provide it to existing customers on terms requiring subscribers not to acquire Optus services by using Optus dialling access override codes. Both injunctions were prefaced with the words “Subject to further order”.

Two matters remained for decision: costs, and whether to make a further injunction applying to “any Preselectable service” ([3]). Optus argued that the additional order would prevent another breach of the same or a similar kind. It relied on the idea of restraining conduct “of a like kind” and referred to the injunction in Trade Practices Commission v Commodore Business Machines Pty Ltd, which included the words “or any similar manner” ([4]).

Moore J declined to make the additional injunction. He considered its meaning and reach unclear, and preferred that any later allegation of breach of the agreement be considered in the factual context in which it arose ([5]). He then considered the competing costs positions. Optus sought its costs of the proceedings to date. Telstra argued that the costs order should reflect Optus’s partial success, proposing that Optus pay half of Telstra’s costs because it had succeeded on only one alleged contractual breach and failed on its Trade Practices Act claim ([6]).

The Court ordered Telstra to pay Optus’s costs of the proceedings to date ([7]). It also ordered deletion of “Subject to further order” from the two injunctions. That variation was to take effect on 26 March 2002 ([8], orders dated 19 March 2002).

Why the court decided this way

The reasons distinguish between the clarity required for an injunction and the broader discretionary assessment involved in costs.

On injunctive relief, Optus’s proposed order was intended to prevent further conduct of a similar kind. But Moore J found that the order already made effectively required Telstra to comply with the negative stipulation in cl 13.3.7, the breach of which had been established ([5]). He also identified a drafting and interpretation problem: “Preselectable service” was not a term in the contentious clause, and although the expression “Preselectable Services” was defined elsewhere in the earlier judgment, the proposed order’s effect and reach could not be determined with sufficient precision ([5]).

That concern mattered in the setting of the case. The earlier dispute had involved whether there had been a “tariffing of Preselectable Services”, and resolving that issue required consideration of the terms on which HomeLine Net was offered and supplied ([5]). Moore J considered it preferable that any later question about whether Telstra had again breached cl 13.3.7 be assessed against the facts of that later allegation. He also preferred that the question not arise as a dispute about whether Telstra had breached a court order ([5]). The reasons therefore do not establish a general prohibition on injunctions extending to similar conduct. They explain why this proposed wording was unsuitable in this dispute.

On costs, the Court recognised that Optus had not succeeded on every issue. It accepted that time was spent on matters on which Optus failed, and that Telstra incurred costs preparing written submissions on those matters ([7]). But it also considered what Optus had set out to establish: that the term preventing use of the override facility was unlawful in the sense that it breached the agreement. Optus succeeded in establishing that contractual breach, even though it relied on several bases and did not establish that the conduct contravened s 52 of the Trade Practices Act 1974 (Cth) ([7]).

Moore J stated that the Court’s costs power is broad but must be exercised judicially ([7]). He referred to Ruddock v Vadarlis as a recent discussion of how the discretion may be exercised and to Byrnes v Jokona Pty Ltd as an illustration of apportionment ([7]). He did not treat either case as dictating a particular outcome. Instead, he concluded that the circumstances of this case warranted an order for Optus’s costs. He regarded the cautionary observations of Jacobs J in Cretazzo v Lombardi as apt ([7]). The reasons do not set out the content of those observations, so their precise formulation should not be inferred from this judgment alone.

The final clarification concerned the phrase “Subject to further order”. Moore J explained that it was included to allow Telstra to seek further consideration if it needed more than 35 days to implement what appeared to be its intended course, namely withdrawing HomeLine Net ([8]). The concern was that the phrase might obscure the Court’s intention that the injunctions were final. The Court therefore removed it, while leaving the 35-day period and the injunctions’ substantive terms in place ([8]).

Before and after state of the law

This judgment does not purport to announce a general change in the law. It applies an existing discretionary costs power to the procedural history and results of this particular proceeding. Moore J expressly described that power as broad and subject to judicial exercise ([7]). The reasons refer to prior authorities about the exercise of the discretion, but they do not formulate a comprehensive test or replace existing principles.

Before this decision, the Court had already declared a breach of cl 13.3.7 and had made the two HomeLine Net injunctions on 28 February 2002 ([1]–[2]). Those injunctions addressed the specific restriction connected with the use of Optus access override codes. What remained uncertain was whether the Court should add a broader injunction covering “any Preselectable service”, how costs should be allocated, and whether the existing injunctions were final or provisional in character ([3]).

After the decision, the existing injunctions remained, but the proposed broader injunction was not added. The orders no longer contained the words “Subject to further order” from 26 March 2002, according to the orders and reasons ([8]). Telstra was responsible for Optus’s costs of the proceedings to date ([7]).

The judgment’s practical contribution is therefore case-specific. It illustrates that partial success does not automatically produce an apportioned costs order: the Court considered the central objective, the relationship between the successful claim and the work done, and the issues on which the applicants failed ([7]). It also illustrates the importance Moore J placed on clarity and context when framing an injunction. The decision does not say that broad or “similar conduct” injunctions are never appropriate. It says that this particular proposed order had an uncertain reach and that later alleged breaches of the contractual clause were better assessed on their facts ([5]).

Key passages with plain-English translation

At [5], Moore J said the proposed order’s effect and reach were “not clear”. In plain English, the Court could not be sufficiently certain about the conduct the additional injunction would cover. A defined term elsewhere in the earlier judgment did not resolve the problem, because the proposed order used language that was not in the contentious contractual clause and the underlying dispute had required close attention to the service terms.

Also at [5], the Court said a future question about breach of cl 13.3.7 should be determined “in the factual context in which the allegation of breach arises”. In plain English, the Court did not want to decide in advance how the clause would apply to every possible service or arrangement. A later dispute, if one arose, would need to be assessed against its own circumstances. The Court also considered it preferable to avoid framing such a dispute as a breach of an imprecise court order.

At [7], Moore J stated: “The Court has a broad discretionary power to order costs which must be exercised judicially.” This identifies the starting point for the costs decision. The discretion is broad, but it is not presented as arbitrary. The judgment then applies that discretion to the parties’ respective success and the work associated with the issues.

The costs reasoning at [7] acknowledges both sides of the result. Optus succeeded in establishing a contractual breach, but only on one of several bases and not under s 52. Telstra had incurred costs responding to issues on which it succeeded. Despite those factors, the Court ordered Telstra to pay Optus’s costs. In plain English, the Court considered Optus’s success on its central contractual objective sufficient in the circumstances to justify that order, rather than the proposed apportionment.

At [8], Moore J explained that “Subject to further order” was intended to leave room for an application if Telstra needed more than 35 days to implement its apparent plan to withdraw HomeLine Net. He then observed that the words might disguise his intention that the injunctions were final. In plain English, the Court separated the injunctions’ delayed start from their intended final character: the orders would not operate immediately, but they were not meant to be merely provisional.

What fact patterns trigger this precedent

The judgment is most directly relevant to a post-judgment situation where a party has succeeded on a central claim but failed on other pleaded claims or grounds, and the Court must decide whether to apportion costs. The specific facts matter. Here, Optus had established a contractual breach related to a restriction on use of its access override codes, but had not proved its Trade Practices Act claim and had succeeded on only one of several bases ([6]–[7]). The decision is not a rule that a party in that position will always receive all its costs. Moore J treated the result as an exercise of discretion in the circumstances.

The case is also relevant where a party seeks an injunction framed to cover a wider class of services or conduct than the specific contractual term found to have been breached. Here, the proposed order used “any Preselectable service”, although that expression did not appear in the contentious clause. The Court was concerned that the order’s scope could not be determined precisely and that a later breach allegation would depend on the facts surrounding the particular service and terms ([5]).

Finally, the decision may be relevant where an order’s prefatory wording creates uncertainty about whether relief is final or subject to later variation. The Court explained the purpose of the phrase in the original orders, but removed it because it could obscure the intended character of the injunctions ([8]). The decision focuses on clarifying the orders made in this proceeding, not on a general formula for drafting injunctions.

How later courts have treated it

The judgment text supplied here contains no decisions subsequent to 19 March 2002 discussing or applying Optus Networks Pty Limited v Telstra Corporation Limited [2002] FCA 267. Its references to other authorities are references made by Moore J in this judgment, not evidence of how later courts treated this decision.

The authorities Moore J mentioned were Trade Practices Commission v Commodore Business Machines Pty Ltd [1989] FCA 406 and Commodore Business Machines Pty Ltd v Trade Practices Commission (1990) 92 ALR 563 on the proposed injunction ([4]); Ruddock v Vadarlis [2001] FCA 1865 and Byrnes v Jokona Pty Ltd [2002] FCA 121 on costs ([7]); and Cretazzo v Lombardi (1975) 13 SASR 4, whose cautionary observations Moore J considered apt ([7]). The judgment describes the Commodore appeal as unsuccessful in relation to the inclusion of “or any similar manner”, while also noting that the proceeding concerned injunctive relief under s 80 of the Trade Practices Act ([4]). It does not provide enough material to state a broader rule about that authority’s reach.

Accordingly, no claim about later treatment of this 2002 decision can be made from the text provided. A current precedent history would require later judgments or a legal research source beyond this judgment.

Still-open questions

The judgment leaves the application of cl 13.3.7 to any later service arrangement unresolved. Moore J expressly contemplated that a further breach question might arise and said it should be resolved in the factual context then presented ([5]). The reasons do not determine how the clause would apply to a different service, different terms, or different use of access override codes.

The decision also does not explain in detail the content of the cautionary observations in Cretazzo v Lombardi. Moore J says those observations were apt to the costs decision, but the text does not quote or set out them ([7]). Any fuller account of the principle drawn from Cretazzo would need to be checked against that judgment itself.

Nor does this decision establish when costs should be apportioned in other cases of partial success. It records that apportionment was raised and refers to authorities discussing the discretion, but its conclusion rests on its assessment of Optus’s central objective and the proceeding’s particular issues ([6]–[7]). It should therefore be read as an example of discretionary costs reasoning, rather than as a fixed outcome for all cases where one party wins some claims and loses others.

Finally, the reasons do not address the merits or outcome of any later application concerning the 35-day implementation period. They explain that the original words would have allowed Telstra to apply if implementation took longer than expected, but the final orders removed those words to clarify the injunctions’ status ([8]). The judgment records no later application or ruling on that possibility.

This is general legal information, not legal advice. Zoe can make mistakes. Before acting on this, relying on it, or using any draft, have a qualified Australian lawyer check it.