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SIP stack enables the implementation of transfer services using the REFER method,
as defined in RFC 3515 (The Session Initiation Protocol (SIP) Refer Method).Transfer a User to a URL .

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Posted by waqqas1

The REFER Method

The SIP stack enables the implementation of transfer services using the REFER method,
as defined in RFC 3515 (The Session Initiation Protocol (SIP) Refer Method). The REFER
method can be used in call transfer applications. It indicates that the recipient must
contact a resource using the contact information provided in the request. The protocol
for emitting and responding to a REFER request is identical to that of a BYE request.
A user agent accepting a REFER request must request approval from the user that is
sending the request. If the user grants approval, the user agent must contact the resource
identified by the URI in the Refer-To header field in the request. The NOTIFY
mechanism is used to inform the user that is sending the REFER method about the
status of the reference.

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Posted by sagitraz

Refer- Tells a UA to contact a third party using supplied information (draft-ietf-sip-refer-07)
• Information about who to contact in a unique Refer-To Header

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Posted by johnwesley

Transfer a User to a URL .

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Posted by yogendra