# RFC 4508: Conveying Feature Tags with the Session Initiation Protocol (SIP) REFER Method

> request for comments publication

**Wikidata**: [Q47460232](https://www.wikidata.org/wiki/Q47460232)  
**Source**: https://4ort.xyz/entity/rfc-4508-conveying-feature-tags-with-the-session-initiation-protocol-sip-refer-method


## References

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