AAAA
Click on the red underlined text to get to the source
... the URI, the client performs an A or AAAA record lookup of the domain
name. The result will be a list of IP addresses ...
... explicit, but with a value of 5060, SRV records were used. Now, A
or AAAA records will be used.
If the TARGET ...
... If no SRV records were found, the client performs an A or AAAA record
lookup of the domain name ...
... transport. Processing then proceeds as described above for an
explicit port once the A or AAAA records have been looked up.
...
... domain name and a port
number, the server queries for A or AAAA records with that name. It
tries to send the response to each element on the resulting list of
...