Hi Manju,
As per grammar defined in RFC-3261, syntax for Call-ID is as follows:
Call-ID = ( "Call-ID" / "i" ) HCOLON callid
callid = word [ "@" word ]
word = 1*(alphanum / "-" / "." / "!" / "%" / "*" /
"_" / "+" / "`" / "'" / "~" /
"(" / ")" / "<" / ">" /
":" / "\" / DQUOTE /
"/" / "[" / "]" / "?" /
"{" / "}" )
As per above, both examples given by you are valid.
Regards,
Alok Tiwari
Aricent
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of manju nath
Sent: Monday, March 12, 2012 10:17 AM
To: [email protected]
Subject: [Sip-implementors] Doubt reagrding CALL-ID host part of SIP request
Hi,
Plz help me to clear my doubt in UAS behaviour if it receives an INVITE
request with CALL-ID has some thing like this as shown below
Call-Id: <random number>@10.10.21.-1 or
Call-Id: <random number>@10.10.21.143526 or
some invalid host part conating invalid IP addrs(malforrmed IP address)
or some garbage(not a FQDN or AOR) value.
Thanks in advance :) ..
*Thanks & Regards,*
*Manjunath.jootoor.*
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