RFC 6157 requires a SIP proxy that relays requests between IPv4 and IPv6 networks to be configured to Record-Route so it stays in the signalling path for the dialog.

Checked 2026-10-02

Vendor
not restricted
Product
not restricted
Subsystem
SIP proxy
Deployment
any
Region
not restricted
Release range
RFC 6157
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). IPv6 for voice and UC platforms: source note ipv6-voice-rfc6157-proxy-record-route. WarmTransfer. https://warmtransfer.net/knowledge/claims/ipv6-voice-rfc6157-proxy-record-route

BibTeX

@misc{warmtransfer-claim-ipv6-voice-rfc6157-proxy-record-route,
  title  = {IPv6 for voice and UC platforms: source note ipv6-voice-rfc6157-proxy-record-route},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/ipv6-voice-rfc6157-proxy-record-route},
  note   = {Source note ipv6-voice-rfc6157-proxy-record-route, checked 2026-10-02}
}

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