[AusNOG] Telstra wifi calling issues

[James Andrewartha]

Hi,

The past month or so some of our staff (whose desks don't get good Telstra 
coverage) have been complaining about calls going straight to voicemail 
when wifi calling is enabled (which we suggested due to the coverage 
issues).

Doing a packet capture, I can see the IPsec tunnel being established to 
epdg.epc.mnc001.mcc505.pub.3gppnetwork.org. Some of the users have public 
IPs, others are behind NAT.

Does anyone have any tips on working out why they'd be having issues all 
of a sudden?

Thanks,

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