Singtel shares slip further after another outage at Optus

But analysts not sounding the alarm yet and are maintaining upbeat targets on S'pore telco

- Kang Wan Chern Deputy Business Editor

Shares of Singtel fell further on heavy volume after its Australian subsidiary Optus suffered another emergency services outage.

Singtel fell as much as 3.8 per cent to $4.10 shortly after the market opened on Sept 29, before recovering to close the day at $4.12.

It was the most traded stock by value, with more than 60 million shares changing hands. The shares had already lost around 3 per cent of their value last week, following an earlier breakdown.

Optus, Australia's second-largest telco, on Sept 28 suffered an outage that disrupted emergency 000, or triple zero, calls to the police, fire department and ambulance services on its network.

The issue, involving a mobile phone tower site in the Dapto area of New South Wales (NSW), affected around 4,500 customers and calls made between 3am and 12.20pm, including some emergency calls, the media reported.

In a Sept 29 statement, Singtel said one person who required emergency services was impacted, but this person was able to call emergency services from another phone successfully.

Singtel added that the outage experienced is a type that "carriers around the world routinely encounter" and "did not arise from any upgrade or maintenance action being conducted".