Hello,
This is to do with WiFi calling (on iPhone etc). It works well outside of the mentioned prefixes/netblocks, however, it doesnt when coming from Exponential-e 83.244.250.208/27 which is part of a wider block 83.244.128.0/17
We know its not a local issue, as other carriers (EE) work fine using exactly the same connection. We are trying to understand what is causing the issue, as we only seem to be able to get through to 1st line CSAs. Our initial thought is that this range is not being allowed for some reason.
Many thanks for any help / pointers where to go next.
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