Comments
The SIP architecture identifies two basic components:
• The SIP User Agent (UA) - the endpoint component, which can be represented by a hardware or software device implementing SIP (e.g., an IP phone), and consists of two main components:
• User Agent Client (UAC) - that initiates the calls
• User Agent Server (UAS) - that answers the calls
Posted by yogendra
SIP is a client server architecture.The client in this architecture is user agent(UA).The UA interacts with the user.It usually has an interface towards the user in the form of personal computer or IP phone.And in the architecture basically four types of SIP servers could be used.
1.)user agent server
2.)proxy server
3.)Redirect server
4.)Registrar
The type of server used determines the architecture of the network.
Posted by sagitraz
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