Mobile Phone - Call diversions

This is especially useful for Apple iPhones which have no specific settings for call diversions, other than on or off.

Diverting Calls to a number eg. Voicemail

Divert calls when out of coverage or phone turned off
**62*voicemail number# SEND

Divert calls when you are "busy" (you press red button)
**67*voicemail number# SEND

Choose seconds before divert

It seems all networks support only options between 5 and 30 seconds, in 5 second increments. So, in each case XX is a number between 5 and 30 that is a multiple of 5.

Vodafone
* * 61 * [voicemail no] * * XX # SEND (for diversion to voicemail)
* * 61 * 0414122000 * * XX # SEND (for diversion to CALLminder)
Diversions (call-forwarding) and cancellations, and call barring can also be set using GSM dial codes.

Optus
* * 61 * 321 * * XX # SEND

Telstra
* * 61 * 101 * * XX # SEND

3
* * 61 * 0430005333 * * XX # SEND
or
* * 61 * 333 * * XX # SEND