This includes prices for contracts with NBN Co, which is paying Telstra for the use of telecommunications infrastructure over the next two decades. NBN-related income rose 6 per cent to $987 million over the year, contributing to InfraCo Fixed’s earnings of $1.6 billion, up 0.5 per cent on a year earlier. Keeping InfraCo Fixed also gives Telstra options to develop the business, such as building more intercity fibre networks, Ms Brady said. Telstra’s shares fell 2.7 per cent to $4.13 on Thursday after what one investor described as some disappointment that shareholders would not be getting a “short-term sugar hit”…