[AusNOG] Telstra Wi-Fi calling on our network.

[James Harmey]

I looked into this as to allowing traffic for WiFi calling on our corporate
WiFi.

Allowing (or denying) traffic to these URLs should be enough to manage WiFi
calling.

epdg.epc.<carrier mnc>.<carrier mcc>.pub.3gppnetwork.org

so for Telstra that would be:

epdg.epc.mnc001.mcc505.pub.3gppnetwork.org
The MNC and MMC values are publicly available.

It’s also just an IPSec tunnel so you could always block that if you were
so inclined.

On Sat, 12 Oct 2019 at 10:15, <mike at ozonline.com.au> wrote:

> Hi All,
>
> So Telstra mobile services increasingly seem to revert to using
> Wifi calling even in the presence of decent signal strength.
>
> If I were a CDN wanting to connect to Telstra IP,
> they'd charge me for injecting traffic into their network or for transit,
> and yet Telstra is injecting traffic into our our network to carry
> some of their cell traffic, without payment or agreement.
>
> Now you might say, sure, but we're doing that for our customers not
> for Telstra. But Telstra themselves will charge CDNs for delivering
> content
> to Telstra's customers, something Telstra's end customers are presumably
> already paying for. So yeah, we know in this industry what is good for the
> goose is not always good for the gander.
>
> Another point, Telstra, who are our sworn competitors, are using our
> network for Wifi calling to supplement their mobile network. Presumably
> this use of their competitor's networks reduces their capital investment
> requirement and supports their revenue stream by raising the
> quality of their coverage. Hence Telstra's use of their competitor's
> networks
> enhances their ability to dominate the industry, again without
> any kind of settlement to their competitor ISPs.
>
> Thoughts?
>
> Also, anyone have any thoughts about what ACL one might put in place
> to block wifi calling if one was of a mind to?
>
> Michael
> Australia On Line.
>
>
>
>
>
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