Polycom 1725-11530-310 ユーザーズマニュアル

B - 1

Session Initiation Protocol (SIP)

This chapter provides a description of the basic Session Initiation Protocol 

(SIP) and the protocol extensions that are supported by the current SIP 

application. To find the applicable Request For Comments (RFC) document, 

go to 

 and enter the RFC number. 

This chapter contains information on:

• Basic Protocols—All the basic calling functionality described in the SIP 

specification is supported. Transfer is included in the basic SIP support.

• Protocol Extensions—Extensions add features to SIP that are applicable to 

a range of applications, including reliable 1xx responses and session 

timers.

For information on supported RFC’s and Internet drafts, refer to the following 

section, 

This chapter also describes: