Record a Telkomsel SimPATI voicemail greeting
Recording a voicemail greeting on the Telkomsel SimPATI service was usually a two-minute job once the box had been activated. From a handset using the SIM, call 121, wait for the automated menu and choose the option to record or change your greeting. The exact keypresses varied between older firmware and updated service versions, so listen for the spoken labels instead of assuming every menu behaves identically.
This guide reflects the SimPATI setup common in the early 2010s. It also considers Australians who kept an Indonesian SIM while living or travelling, and Telkomsel contacts trying to reach friends and family on Australian mobiles. A short, clear recording tells the caller that a real person received the message and can be called back.
Check the service on your handset
Begin with the handset rather than the SIM packaging, because the voicemail menu may have been changed by a firmware update. The mobile guides at Sidoharjo provide useful background on older carrier menus. Make a note of the SIM's voicemail number, any PIN already assigned and whether calls are diverted while the phone is busy or unreachable.
| Feature | Historical SimPATI voicemail | Australian mobile voicemail |
|---|---|---|
| Entry point | Call 121 from the Telkomsel SIM | Use the voicemail key, icon or carrier visual voicemail |
| Setup | Follow spoken prompts to create the mailbox and greeting | Use the handset voicemail app or dialler shortcut |
| Security | May request a mailbox PIN | Usually uses a carrier-set PIN |
| Playback | Call 121 and select message playback | Tap the voicemail icon or use visual voicemail |
| Caller format | Indonesian mobile beginning 08 | International format begins +61, without the domestic zero |
The main difference is the route into the service. The historical SimPATI box is menu-driven from 121, whereas many Australian Android phones of the period presented a voicemail key or visual-voicemail icon. A Telstra, Optus or Vodafone handset could therefore look unfamiliar even when the greeting concept is the same.
Activate the voicemail box
Insert the Telkomsel SIM, disable call forwarding temporarily if another service is active, and place a normal cellular call to 121. If the call does not connect, check mobile data and voice coverage, then restart the phone. Roaming outside Indonesia may not expose the same menu, so physical use of the SIM in Indonesia gives the most reliable result.
Once connected, follow the prompts to create the mailbox and set a PIN if requested. Choose a PIN you can remember but that is not tied directly to your birthday. Then select the record-greeting or change-greeting option, which was commonly the first choice in legacy boxes, while allowing for menus that assigned another key. Stop after the tone and speak only when instructed.
Record a natural greeting
Aim for 15 to 20 seconds and include your name and the fact that this is a mobile. A practical Australian-style script is: “Hi, you’ve reached [Name] on my mobile. I can’t answer right now. Leave your name, number and a short message, and I’ll call you back.” Replace “call back” with “text” only if you reliably check messages.
Speak at a normal pace and keep the phone about 20 centimetres from your mouth. Avoid music, a television or a noisy train platform in Sydney or Melbourne, where a commuter announcement can easily drown out a quiet recording. “No worries” can sound friendly, but the clearest greeting is conversational, brief and free of background noise.
Save and test the message
End the recording by pressing the save or hash key indicated by the prompt; on some versions, hanging up also saves it. Wait for confirmation before disconnecting. If the system accepts the call but says nothing was stored, repeat the process and keep the phone line open until a tone or confirmation appears.
Test from a second handset if possible. Call 121, choose playback and listen with the volume low enough to reveal any hiss. A second test should come from a different phone, ideally outside the room where the greeting was recorded, so you can hear exactly what a caller will hear.
Call an Australian mobile from Indonesia
Australian mobiles use the country code +61. A number beginning with 04 should become 0412 345 678 when called from Indonesia as +61 412 345 678; the leading zero is removed after +61. Encourage contacts to use the plus sign because it works from changing networks and avoids errors when dialing from a landline.
From a Telkomsel handset, use the international access code offered by the SIM, commonly 0011, followed by +61 and the Australian number. Confirm the prefix in the dialler because IDD codes can change. Roaming charges may be billed in Australian dollars, and a failed voicemail call can still count as a call, so check the plan before testing from Sydney, Melbourne or a regional route with patchy reception.
Fix common recording problems
If the greeting will not record, confirm that the handset has signal, the voicemail box is active and the phone is not hiding unknown calls. A full handset storage can interrupt some Android voicemail apps, although the basic 121 service is less affected. Clear any active call diversion, restart the phone and try again during a quieter period.
For a second reference while navigating the older menus, use PAM 2003. If prompts remain inconsistent, call Telkomsel support from the SIM and ask for the current greeting-recording sequence. Do not repeatedly delete the mailbox while troubleshooting, because saved messages can be lost in the process.
Keep the greeting useful for every caller
Review the greeting whenever your number, work hours or travel pattern changes. Mention that you will be away for a long period, but avoid giving precise home or business locations to unknown callers. Keep a written copy of your PIN somewhere secure, as an Australian mobile account and the Indonesian SIM may use separate credentials.
Open the voicemail menu now, record a clear 15–20 second greeting, and make a test call before sharing the number with contacts.