How a SIP system works
SIP protocol
Article REF: TE7530 V1
How a SIP system works
SIP protocol

Author : François TOUTAIN

Publication date: November 10, 2003 | Lire en français

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3. How a SIP system works

3.1 Simple call

First, let's consider the simple case where user Smith, logged in on his pumpkin machine, wishes to call user Martin on his wolverine machine. Figure 3 shows the exchange of SIP messages between the various components involved.

.Timeline: single...
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