SIP URL

SIP URL

SIP URL used in SIP messages to indicate: originator (From), current destination (Request-URI), final destination (To), and redirection address (Contact)

Examples:

sip:firstname.lastname@company.com	simple example
sip:+1-212-555-1212@gateway.com;user=phone	a call from the Internet to the PSTN E.164 phone number (user=phone is not necessary, but just a hint to parsers that it is a numeric phone number)
sips:+1-212-555-1212@gateway.com;user=phone	a call from the Internet to the PSTN E.164 phone number - the SIP messages should be passed via TLS
sip:+1-212-555-1212@proxy.gateway.com;user=phone	proxy server determines gateway and forwards the request
sip:firstname.lastname@registrar.com;method=register	to register a user at a SIP registrar

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Transcript

[slide217] So the net result is we can now take our phone numbers and we can put them into SIP URIs. So we can say SIP colon, and we give a phone number. But now we have to do it via a gateway, and we have to say, are we trying to reach a phone? Are we trying to reach our registrar? So that means we can actually go from a physical phone and we can still use SIP even to make call even through we are using a physical phone connected to the PSTN, which is a very cool thing. So it means I could walk into a room that had a phone, and by calling my registrar, I could actually now redirect my SIP calls to that PSTN phone. Fairly cool.