4.3 GRUU Mechanism
The following examples demonstrate various GRUU syntaxes:
A GRUU for the user agent that follows the registration procedure defined in [MS-SIPREGE] is as follows:
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sip:alice@contoso.com;gruu;opaque=user:epid:qIIWS2j5AVeD_HxnQdxmlwAA
A GRUU for an application that implements the voice mail service for the user is as follows:
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sip:alice@contoso.com;gruu;opaque=app:voicemail
GRUUs for multimedia conference endpoints are as follows:
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sip:alice@contoso.com;gruu;opaque=app:conf:focus:id:36022956C3FC3243B8121CD611363ED0 sip:alice@contoso.com;gruu;opaque=app:conf:chat:id:36022956C3FC3243B8121CD611363ED0 sip:alice@contoso.com;gruu;opaque=app:conf:audiovideo:id:36022956C3FC3243B8121CD611363ED0
GRUUs for servers are as follows:
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sip:homeserver.contoso.com@contoso.com;gruu;opaque=srvr:HomeServer:dL8cwxBrTuG8eC4-Q_GNGAAA sip:mediationserver.contoso.com@contoso.com;gruu;opaque=srvr:MediationServer:_tRfGncbQyun3v75Q1qr9QAA sip:mrasserver.contoso.com@contoso.com;gruu;opaque=srvr:MRAS:OKPDbAVxIEKtPh2g624vPAAA sip:qosmserver.contoso.com@contoso.com;gruu;opaque=srvr:QoSM:WftfTuTVQCSAB0ZJi-j7qAAA