What is BT known for in the financial market sector?

BT is known for designing trader voice products in the financial market sector. This expertise is rooted in their long-standing history of developing communication technologies tailored specifically for trading environments. Trader voice products are essential for financial markets as they enable traders to efficiently communicate and execute trades in fast-paced situations.

These products typically include advanced voice trading solutions that facilitate real-time communication between brokers and traders, which can be critical for coordinating trades quickly and securely. BT has a strong reputation in this area due to their commitment to reliability and innovation, ensuring that traders have tools that meet their demanding connectivity and communication needs.

The other options, while important components of the financial technology ecosystem, do not align with BT's recognized specialty in developing voice communication solutions for traders.