Datasheet

Microsoft Office Communicator 2005 utilizes these SIP methods for client registration and to send mes-
sages between clients and servers. Figure 1-8 depicts an example of SIP methods that are used by
Microsoft Office Communicator 2005.
Figure 1-8
SIP Messages
Using the methods described in the previous section, SIP messages are used to communicate requests and
responses between SIP clients and SIP servers. The following is an example of a SIP request message:
INVITE sip:joes@connectedinnovation.com SIP/2.1
Via: SIP/2.0/UDP workstation1.connectedinnovation.com
Max-Forward: 70
To: “Joe” <sip:joes@connectedinnovation.com>
From: “Dan Willis” <sip:danw@awesome.com>;tag=456
Call-ID: 972-555-5555@192.168.1.102
CSeq: 1 INVITE
Contact: <sip:danw@awesome.com>
Content-Type: application/sdp
Content-Length: 200
LCS 2005 SP1 Environment
REGISTER (SIP URI)
INVITE
MESSAGE
NOTIFY
BYE
NEGOTIATE (Settings)
OPTIONS (Video, Collab)
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Introducing Microsoft Unified Communications
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