Voice over IP ☎💬🖧

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VoIP → Voice over IP

Open discussions about VOIP protocols (e.g. SIP), providers, and related security matters.

There are two other VOIP communities on big centralized instances (thus kept unnamed), and ATM they are rightfully dead communities anyway. This infosec.pub community is apparently the only free-world decentralized threadiverse venue for VOIP chatter -- but if another emerges let the moderator know so it can be linked in this sidebar.

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How can we use VOIP to call companies (like banks) without using POTS, since they don’t use POTS either? (beehaw.org)

submitted 1 week ago by debanqued@beehaw.org to c/voip@infosec.pub

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The sad reality is that POTS is dying. The upside of this is that in principle we don’t need a VOIP provider, right? We should be able to run our own SIP server and place a call to another SIP user without using a POTS line -- thus w/out a subscription to a service. SIP addresses look like email addresses.

The problem is, IIUC, I have no way of knowing the SIP address for my bank. I only have their phone number. Is there a way around this? Is there a way to obtain the underlying VOIP address for a phone number?

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