Changeset 797 for pjproject/trunk/pjsip/include/pjsip-ua/sip_xfer.h
- Timestamp:
- Nov 11, 2006 4:16:04 PM (17 years ago)
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-
- 1 edited
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pjproject/trunk/pjsip/include/pjsip-ua/sip_xfer.h
r515 r797 30 30 31 31 /** 32 * @defgroup PJSUA_XFER Call Transfer32 * @defgroup PJSUA_XFER SIP REFER (RFC 3515) for Call Transfer etc. 33 33 * @ingroup PJSIP_HIGH_UA 34 * @brief Provides call transfer functionality.34 * @brief SIP REFER dialog usage (call transfer, etc.) 35 35 * @{ 36 36 * 37 * This implements call transfer functionality to INVITE sessions. The call 38 * transfer functionality uses SIP Event Subscription framework for 39 * managing call transfer status. 40 * 41 * Application must link with <b>pjsip-ua</b> AND <b>pjsip-simple</b> static 42 * libraries to use call transfer functionality. 37 * This describes a generic handling of SIP REFER request. The SIP REFER 38 * request is described in RFC 3515, and commonly used to perform call 39 * transfer functionality. Other types of SIP REFER usages are described 40 * in draft-worley-sip-many-refers-00 draft, for example: 41 * - Remote Dial: where UAC sends REFER to instruct REFER recipient to 42 * initiate an INVITE session to some target. 43 * 44 * A REFER request can be sent inside or outside existing dialog context, 45 * although for call transfer case, it is more common to send REFER inside 46 * existing INVITE session context. PJSIP supports both sending REFER request 47 * inside or outside dialog context. 48 * 49 * The REFER framework uses @ref PJSIP_EVENT_NOT to manage the event 50 * subscription created by the REFER request. Because of this, application 51 * must link with <b>pjsip-ua</b> AND <b>pjsip-simple</b> static libraries 52 * to use REFER functionality. 53 * 54 * Reference: 55 * - <A HREF="http://www.ietf.org/rfc/rfc3515.txt">RFC 3515: The Session 56 * Initiation Protocol (SIP) Refer Method</A> 57 * - @ref PJSIP_EVENT_NOT 43 58 */ 44 59
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