3 ms·
not at the client device level like your cellphone, no you can't. Would have to be done by your carrier at the SS7/PSTN level which as an individual phone syste
by walrus01 5y ago
not at the client device level like your cellphone, no you can't. Would have to be done by your carrier at the SS7/PSTN level which as an individual phone system subscriber, is totally opaque to you.