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But in some circumstances is that PLMN/PTSN interconnectivity just an “application layer” on top of existing IPv4/v6 infrastructure...similar to how VoIP/SIP wo
by fergbrain 6y ago
But in some circumstances is that PLMN/PTSN interconnectivity just an “application layer” on top of existing IPv4/v6 infrastructure...similar to how VoIP/SIP works?