Re: Musing on SIP and SPAM

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On 4/27/20 7:28 AM, Dave Cridland wrote:


On Mon, 27 Apr 2020 at 15:25, Michael Thomas <mike@xxxxxxxx> wrote:


On 4/27/20 1:32 AM, Dave Cridland wrote:


On Sat, 25 Apr 2020 at 16:26, Michael Thomas <mike@xxxxxxxx> wrote:
Do the unwashed masses use anything that supports inter-provider like
xmpp or sip for texting? As far as I can tell that ship sailed ages ago
with facebook, whatsapp and all of the rest.

Well, WhatsApp, Zoom, and various others are either XMPP or a bastard child of it, but no, few of them choose to enable any kind of inter-provider (ie, federation). But that's not a technical limitation, it's a business one.

Yeah, I just noticed that Zoom claims to use SIP poking around. The question is not whether it's SIP per se, but whether there will be inter-carrier anything. If there is inter-carrier, then the problem will remain, especially when it traverses an intermediary proxy.


Zoom interoperate with SIP, I think. But they used to interop via XMPP as well, and I believe they use XMPP internally. They stopped external interop with XMPP when Google and Facebook ceased to use it, I think.

Ok, that probably what I was seeing. I wasn't actually setting out to see if they used SIP :)

Mike


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