Asterisk res_pjsip t38_udptl_maxdatagram (default 0) overrides the maximum datagram size advertised by a remote endpoint, intended for broken endpoints.

Checked 2026-10-02

Vendor
Sangoma
Product
Asterisk
Subsystem
res_pjsip
Deployment
on-premises
Region
not restricted
Release range
Asterisk 21
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). Troubleshooting fax over IP failures: source note fax-over-ip-troubleshooting-asterisk-maxdatagram. WarmTransfer. https://warmtransfer.net/knowledge/claims/fax-over-ip-troubleshooting-asterisk-maxdatagram

BibTeX

@misc{warmtransfer-claim-fax-over-ip-troubleshooting-asterisk-maxdatagram,
  title  = {Troubleshooting fax over IP failures: source note fax-over-ip-troubleshooting-asterisk-maxdatagram},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/fax-over-ip-troubleshooting-asterisk-maxdatagram},
  note   = {Source note fax-over-ip-troubleshooting-asterisk-maxdatagram, checked 2026-10-02}
}

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