Former cricketer Michael Slater in court

Former Australian Test cricketer Michael Slater rang his ex-partner 18 times and sent 66 texts, in breach of a restraining order, a court has heard.

Slater, 51, was arrested and charged on Wednesday morning after allegedly repeatedly contacting his former partner over a two-and-a-half-hour period on Tuesday evening.

The messages were "harassing and highly offensive" and followed Slater's October arrest for alleged harassment, a bail hearing was told on Wednesday.

A police prosecutor suggested the only way to stop the messaging was to ban Slater from using any electronic devices.

"In today's world, I would submit that's almost impossible," he told Manly Local Court.

However, Slater's lawyer James McLoughlin explained the episode as a consequence of alcohol abuse on Tuesday night.

His client, whose latest charges include using a carriage service to harass and breach of bail, had "slipped up once".

After hearing Slater would arrange to be admitted to the mental health ward of Northern Beaches Hospital, magistrate Michelle Goodwin granted release on "very very strict" conditions.

She imposed effective house arrest, confining the former opener to his sister's northwest Sydney home until such time a bed becomes available at the hospital.

The police officer in charge of the investigation must be informed of the dates of Slater's future admission and discharge.

"It's in the interest of the community and certainly Mr Slater that he seeks treatment in the community," Ms Goodwin said.

Slater, who stood down from commentary roles upon his first arrest in October, must also not consume any drugs or alcohol unless prescribed by a doctor and can't use any mobile phone.

"Mr Slater should be under no illusions that if he breaches bail, he will be back in custody. Do you understand that, sir?" Ms Goodwin said.

"Yes," Slater replied.

The matter will return to court in Waverley next Thursday.