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176 Dialogic
®
Global Call IP Technology Guide — November 2007
Dialogic Corporation
IP-Specific Operations
Allow OPTIONS GCEV_EXTENSION if
E_SIP_OPTIONS_Access is enabled
Call-ID
† INVITE GCEV_OFFERED
INFO, NOTIFY, SUBSCRIBE GCEV_EXTENSION
OPTIONS GCEV_EXTENSION if
E_SIP_OPTIONS_Access is enabled
Contact
(display string and URI
separately returned in
field-specific
parameters)
INVITE GCEV_OFFERED
INFO, NOTIFY, SUBSCRIBE GCEV_EXTENSION
OPTIONS GCEV_EXTENSION if
E_SIP_OPTIONS_Access is enabled
REFER GCEV_REQ_XFER if call transfer is enabled
3xx to 6xx responses GCEV_DISCONNECTED
Content-Disposition INFO GC_CALLINFO
Content-Encoding INFO GC_CALLINFO
Content-Length INFO GC_CALLINFO
Content-Type INFO GC_CALLINFO
Diversion
(URI separately
returned in field-specific
parameter)
INVITE GCEV_OFFERED
INFO, NOTIFY, SUBSCRIBE GCEV_EXTENSION
Event
† NOTIFY, SUBSCRIBE GCEV_EXTENSION
Expires
† SUBSCRIBE GCEV_EXTENSION
From
‡
(display string and full
header also returned in
header-specific
parameters)
INFO, NOTIFY, SUBSCRIBE GCEV_EXTENSION
OPTIONS GCEV_EXTENSION if
E_SIP_OPTIONS_Access is enabled
REFER GCEV_REQ_XFER if call transfer is enabled
Referred-By
† INVITE GCEV_OFFERED
REFER GCEV_REQ_XFER if call transfer is enabled
Replaces
† INVITE GCEV_OFFERED
REFER GCEV_REQ_XFER if call transfer is enabled
Request-URI
† INVITE GCEV_OFFERED
INFO, NOTIFY, SUBSCRIBE GCEV_EXTENSION
OPTIONS GCEV_EXTENSION if
E_SIP_OPTIONS_Access is enabled
REFER GCEV_REQ_XFER if call transfer is enabled
Require OPTIONS GCEV_EXTENSION if
E_SIP_OPTIONS_Access is enabled
Table 9. Common Header Fields in Inbound SIP Messages (Continued)
SIP header SIP message Global Call event
† Header field also accessible via field-specific parameter define.
‡ From and To header fields are not retrieved from INVITE messages using SIP message information parameters.