Hengeler Mueller's team follows a cross-practice approach and routinely advises at the interfaces with IT, media and regulatory law as well as M&A, including litigation. Among the recent instructions are regulatory matters pertaining to 5G frequency allocation as well as the expansion of the 5G mobile network; regulatory requirements, such as compliance with the Federal Network Agency's rollout requirements, as well as German and European telecommunications antitrust law issues are other core topics. The antitrust law interface also includes clients' representation in proceedings before the Federal Network Agency, the Federal Cartel Office and the EU Commission. Katharina Hesse is a key contact for transaction support, while administrative and regulatory expert Wolfgang Spoerr is also experienced in litigation.