6 Nov
2012
6 Nov
'12
3:07 p.m.
Carsten Bock writes:
We did agree, that SDP would probably never contain
both IPv4 or IPv6
addresses. RFC 6157 (https://tools.ietf.org/html/rfc6157, "IPv6
Transition in the Session Initiation Protocol (SIP)") also recommends
using ICE for SIP-IPv4/IPv6 dual-stack.
ok, i need to read it.
If we follow this RFC and typical UA's, we will
always have
"either/or" rather than "and".
However, i've never seen any dual-stack SIP-Endpoints so far.
at least cisco ios gateways support dual stack:
protocol mode ipv4 | ipv6 | dual-stack [preference {ipv4 | ipv6}]}
so what should sip proxy do when $rd is domain name?
-- juha