Optus mobile call forwarding to Terva
Use this if your practice number is an Optus mobile, personal or business.
Your phones ring first, so the front desk gets the first chance to answer. Terva answers when nobody picks up.
Enter it once and every code on this page uses it. Copy works once it’s filled in.
Type the codes into the dial pad yourself. iPhone blocks links that turn on call forwarding, so there’s nothing to tap.
Turn off voicemail first
Voicemail or a recorded message that answers first stops the call reaching Terva.
On an iPhone, open Settings > Apps > Phone. Turn off Live Voicemail, and set Call Screening to Never (on older iPhones, turn off Silence Unknown Callers). Otherwise the iPhone answers new patients before Terva can.
The no-answer code below takes the place of voicemail for unanswered calls.
Choose when Terva answers
We recommend When no one answers, left on all the time. The rest are optional.
Aim for a 15-second ring time. 10 to 20 seconds is fine. If calls enter a queue, set the caller’s total wait to about 15 to 30 seconds.
On the Optus mobile that has your practice number, open the dial pad.
Type this code, then press Call. The 15 at the end is the ring time in seconds.
**61*0X XXXX XXXX (your Terva number)**15#Wait for the network to confirm.
On the Optus mobile that has your practice number, open the dial pad.
Type this code, then press Call.
**67*0X XXXX XXXX (your Terva number)#Or in the My Optus app, open your mobile’s Voicemail and call diversions settings and divert busy calls to your Terva number.
For most practices, When no one answers already covers after hours because nobody picks up. Check that voicemail doesn’t answer first, and make a test call after closing.
Check with your provider
We couldn’t confirm that an Optus mobile can forward on a schedule. Ask Optus if you need one.
Only if you want every after-hours call to skip your phone
At closing, turn on forward-all from the practice mobile, then press Call.
**21*0X XXXX XXXX (your Terva number)#When you open, turn it off again, then press Call.
##21#
Ring time
Set the no-answer ring time to 15 seconds where you can. 10 to 20 seconds is fine. For a call queue, set the caller’s total wait to about 15 to 30 seconds.
The last number in the no-answer code is the ring time. Optus accepts 5-second steps from 5 to 30 seconds. Use 15 seconds; 10 to 20 seconds is fine.
Check it works
- From another phone, not one on your practice line, ring your practice number.
- Don’t answer at the practice. Let it ring out.
- Terva answers.
- Do it again once after hours. If voicemail, or someone carrying the practice phone, answers first, the call won’t reach Terva.
Ringing your Terva number directly doesn’t test forwarding. To test When busy, keep another call going on the line first. Test the after-hours route after closing.
Signed up to Terva? Press Check it works on Phone line, and Terva rings your line for you. How the check works.
Turn forwarding off
Dial the code for each rule you turned on, then press Call. Or turn the diversion off in the My Optus app.
When unanswered:
##61#When busy:
##67#After-hours forward-all:
##21#
Someone else looks after your phones?
Copy this, fill in the [brackets] and send it. It has your Terva number once you enter it above.
Your phone company
Codes don’t work, the account holder has to ask, or the line runs through an adaptor or older phone system.
Hi, I’m [your name], the account holder for [practice name].
On our number [practice number], please turn on call forwarding when not answered, to 0X XXXX XXXX, after 15 seconds. Please don’t forward every call: our phones should ring first.
Please also: - turn off message bank (voicemail) on this number, or tell me how, so it doesn’t answer first - set this at your end, not on our phone system or adaptor box - keep the caller’s number showing on forwarded calls
What does a forwarded call cost on our plan, and how do I turn this off again? I authorise this change.
When it’s done, Terva will ring our number to check it works.
Thanks, [your name]
Good to know
Don’t dial the check code Optus prints, #61#: it turns no-answer forwarding off. Check the diversion in the My Optus app instead.
Optus bills the forwarded part of the call at your plan’s rates; on prepaid it’s 10c a minute. Receiving the call is free.
Sources
These steps follow the provider’s own guides, checked in September and October 2026. Menus change, so if a step doesn’t match what you see, check with your provider.
Other phone systems
See every phone system- A phone system answers first
- Calls already go to a mobile
- Telstra mobile
- Vodafone mobile
- Boost, ALDI, amaysim and others
- Telstra home or business phone
- Optus landline
- TPG or iiNet
- Aussie Broadband
- 3CX
- Maxo (MaxoTel)
- Hosted desk phones
- Microsoft Teams Phone
- Zoom Phone
- RingCentral
- Telstra TIPT
- Older phone system or adaptor box
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