Over a quarter of Optus customers have revealed they might hang up on the embattled telco giant for good after last month's deadly triple zero outage.

A poll conducted by Resolve Political Monitor for The Sydney Morning Herald and The Age found 27 per cent of Optus' 10.7 million customers have considered leaving the network over how it handled the outage, which has been linked to the deaths of three people.

Another 47 per cent of those surveyed said they believed Optus' handling of the hours-long triple zero failure was either "poor or very poor".

The poll also found 30 per cent were "neutral" about how Optus reacted to the outage, while 23 per cent assessed their response as either good or very good.

The findings were delivered after 1800 people were surveyed by polli

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