| Name | Type | Description | Attributes |
|---|---|---|---|
| sip-contact-identifier | xs:string | The contact ID. | |
| sip-contact-uri | xs:string | The URI identifying this SIP contact | |
| device-model | xs:string | The model of the device using this sip identity. | |
| device-version | xs:string | The software version of the device using this sip identity. | |
| is-identifer-generated-by-UA | xs:boolean | True if sip-contact-identifier coming from the endpoint. False if it was generated by application |