Asterisk's external_media_address option rewrites the SDP media address to the configured external address when the message goes to a destination outside local_net and the media address in the SDP is inside local_net.

Checked 2026-09-24

Vendor
Asterisk
Product
Asterisk res_pjsip
Subsystem
NAT
Deployment
on-premises
Region
not restricted
Release range
unversioned documentation page, current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). One-way and no-way audio diagnosis: source note one-way-audio-asterisk-external-media-address. WarmTransfer. https://warmtransfer.net/knowledge/claims/one-way-audio-asterisk-external-media-address

BibTeX

@misc{warmtransfer-claim-one-way-audio-asterisk-external-media-address,
  title  = {One-way and no-way audio diagnosis: source note one-way-audio-asterisk-external-media-address},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/one-way-audio-asterisk-external-media-address},
  note   = {Source note one-way-audio-asterisk-external-media-address, checked 2026-09-24}
}

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