Ismail and Chetty have been suspended until January 31 next year for persistent breaches of Article 1.5.2 of the Code, namely "unbecoming or detrimental conduct which could bring them, the Board or the game of cricket into disrepute".
Following disciplinary action, the two players have admitted to contravening the Code and have been suspended from playing for the Proteas team, but will be allowed to play in their provincial sides.
"We strive to be a highly professional and world-class outfit, whether on or off the field. Incidents of this nature are always disappointing and cannot be tolerated in a high performing environment," said CSA Chief Executive Haroon Lorgat in a short statement.
"We have agreed with Shabnim and Trisha that they will undertake specialised counseling during their period of suspension and together with South African Cricketers Union, we will try to ensure that they successfully re-integrate themselves back into the team environment," it said.