# RFC 3327: Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts

> request for comments publication

**Wikidata**: [Q47471282](https://www.wikidata.org/wiki/Q47471282)  
**Source**: https://4ort.xyz/entity/rfc-3327-session-initiation-protocol-sip-extension-header-field-for-registering-non-adjacent-contacts


## References

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