Gruu and sip.instance support, Limitations of the gruu feature, Enabling/disabling gruu and sip.instance support – AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN User Manual
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GRUU and sip.instance Support
Globally Routable User-Agent URIs (GRUUs) provide a way for anyone on the Internet to route
a call to a specific instance of a User-Agent.
The IP phones provide GRUU support using draft-ietf-sip-gruu-15. A sip.instance is added to all
non-GRUU contacts. By default, this feature is enabled. You can enable or disable this support
using the configuration files.
Limitations of the GRUU Feature
The following are limitations of the GRUU feature on the phones:
• GRUU-Draft-15 is not compatible with versions prior to GRUU-Draft-10.
• Phones do not support temporary or phone-created GRUUs.
Enabling/Disabling GRUU and sip.instance Support
Use the following procedure to enable/disable GRUU and sip.instance support.
Configuration Files
For the specific parameter you can set in the configuration files, see Appendix A, the section,
on