Then you can at least use phones for domestic purposes. If your netowrk allows foreigners to spoof numbers with no international prefix, you've done something o

Then you can at least use phones for domestic purposes. If your netowrk allows foreigners to spoof numbers with no international prefix, you've done something obviously wrong, because at least most explanations for allowing caller-id spoofing won't hold in the international scenario. Especially now with VoIP, as you can just make these international callers use a VoIP to proxy the call (and thus get subject to US jurisdiction with it;s KYC lawas and all).