# RFC 5196: Session Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF)

> request for comments publication

**Wikidata**: [Q47473395](https://www.wikidata.org/wiki/Q47473395)  
**Source**: https://4ort.xyz/entity/rfc-5196-session-initiation-protocol-sip-user-agent-capability-extension-to-presence-information-data-format-pidf-


## References

1. RFC Index
2. DBLP Dataset 2021-01-02