On 16 February 2007 Optus lodged an ordinary access undertaking (Optus 2007 Undertaking) with the ACCC about the mobile terminating access service (MTAS).
The Optus 2007 Undertaking specifies certain terms and conditions upon which Optus undertook to supply its domestic GSM terminating access service (DGTAS). It includes a service description, and specifies Optus's proposed pricing for the service for the period 1 July 2007 to 31 December 2007 inclusive.
On 7 March 2007 the ACCC released a discussion paper on the Optus 2007 Undertaking.