[AusNOG] Optus Wifi calling assistance

[Chard, Alex]

Hi Noggers,
I'm looking for a contact at Optus (or not at Optus maybe?) who would be able to advise what we need to permit on our firewalls to get Wifi Calling working on the Optus network.
I have tried the normal customer support channels and they were predictably useless.

Thanks,
Alex Chard
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