* 2G services only available within GSM/GPRS areas of the Open Network. You will require a GSM/GPRS 900 compatible device to access the 2G service. Please note that not all products & services are available in all locations within coverage areas. To check the availability of services in your area please call 1300 300 041 . Optus prepares Open Network (mobile) coverage maps using the latest available data, tools and techniques to map Optus mobile coverage as accurately as possible. However as with any network based on radio technology, handset quality or local conditions may prevent or interfere with mobile reception within coverage areas - e.g., inside concrete buildings, lift wells, basements, tunnels and road cuttings. High rise buildings may also suffer degradation of service and these maps are not an indication of in-building coverage. Our coverage maps may show planned rollout. These predictions are based on rollout schedules available at the time of publication and they may be subject to change without notice should circumstances require.

* Optus 3G single band service is part of the Open Network and refers to our UMTS2100MHz coverage. You will require an Optus 3G single band compatible device to access the 3G single band coverage. A number of  factors may affect coverage including location and demand on the network. Please note that not all products and services are available in all locations within coverage areas. To check the availability of services in your area, please call 1300 300 041. Outside the 3G single band area, you will require a device capable of accessing GSM 900MHz. When within a 3G single band coverage area, your call or data session may also access the GSM/GPRS network if your handset supports GSM/GPRS 900MHz. Optus prepares Open Network (mobile) coverage maps using the latest available data, tools and techniques to map Optus mobile coverage as accurately as possible. However as with any network based  on radio technology, handset quality or local conditions may prevent or interfere with mobile reception within coverage areas. Eg. Inside concrete buildings, lift wells, basements, tunnels and road cuttings. High rise buildings may also suffer degradation of service and these maps are not an indication of in-building coverage. Our coverage maps may show planed rollout. These predictions are based on rollout  schedules available at the time of publication and they may be subject to change without notice should circumstances require.

* Use of an external antenna will provide coverage to 97%. Optus 3G dual band service is part of the Open Network and refers to our UMTS2100MHz/900MHz coverage. Coverage available throughout the Open  Network in 3G dual band areas subject to network availability. You will require an Optus 3G dual band compatible device to access the 3G dual band coverage, throughout the Open Network. A number of factors may affect coverage including location, demand on the network and use of external antenna. Please note that not all products and services are available in all locations within coverage areas. To check the availability of services in your area please call 1300 300 041. When within a 3G dual band coverage area, your call or data session may also access the GSM/GPRS network If your handset supports GSM/GPRS 900MHz. Optus prepares Open Network (mobile) coverage maps using the latest available data, tools and techniques to map Optus mobile coverage as accurately as possible. However as with any network based on radio technology, handset quality or local conditions may prevent or interfere with mobile reception within coverage areas. Eg. Inside concrete buildings, lift wells, basements, tunnels and road cuttings. High rise buildings may also suffer degradation of service and these maps are not an indication of in-building coverage. Our coverage maps may show planed rollout. These predictions are based on rollout schedules available at the time of publication and they may be subject to change without notice should circumstances require.