Aliza Nagauker wrote:
> Hello,
>
> I have question regarding SDP information in SIP messages:
>
> 1. Is it common in sip implementations to set SDP connection parameter
> (c=)
> with fully
> qualified domain name (FQDN) instead of IP4 address?
No, since it is not allowed according to rfc2327.
> 2. Does a proxy server opens the SDP section of the message or does it
> just
> passes it on in the messages to the next proxy/sip terminal? Will it
> forward
> the SDP with a resolved connection address?
Proxies are supposed to ignore the body.
> 3. If a destination sip terminal gets message with SDP connection
> address
> which is FQDN how does it resolves this address? Is it common that a SIP
> terminal refers to the DNS by itself? or maybe it asks it's proxy to
> resolve
> the address? How is it done?
> thanks for your help
As I mentioned above, IPv4 or v6 addresses, not domain names, are used
in the SDP.
-Jonathan R.
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Avenue
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PH: (973) 952-5000
http://www.dynamicsoft.com
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